Questions on Algebra: Probability and statistics answered by real tutors!

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Question 201968: Sam bought 1 of 250 tickets selling for $2 in a game with a grand prize of $400. Was $2 a fair price to pay for a ticket to play this game?
Thanks for your help.: Sam bought 1 of 250 tickets selling for $2 in a game with a grand prize of $400. Was $2 a fair price to pay for a ticket to play this game?
Thanks for your help.
Click here to see answer by stanbon(22894)

Question 201969: The game of dots is played by rolling a fair die and recieving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?
Thanks in advance for your help.: The game of dots is played by rolling a fair die and recieving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?
Thanks in advance for your help.
Click here to see answer by stanbon(22894)

Question 201880: The letters of the word Mississippi are placed in a hat. What is the probability that the first two letters drawn are both i if the first letter drawn is not replaced?: The letters of the word Mississippi are placed in a hat. What is the probability that the first two letters drawn are both i if the first letter drawn is not replaced?
Click here to see answer by nerdybill(1993)

Question 201855: Lets U = {q,r,s,t,u,w,x,y,z}; A={q,s,u,w,y}; B={q,s,y,z} and C ={v,w,x,y,z} List the members of the indicated set, using set braces.: Lets U = {q,r,s,t,u,w,x,y,z}; A={q,s,u,w,y}; B={q,s,y,z} and C ={v,w,x,y,z} List the members of the indicated set, using set braces.
Click here to see answer by Edwin McCravy(2514)

Question 201836: A group of 12 people are assigned numbers 1 through 12 A person assigned a number of 5 or less is chosen.
: A group of 12 people are assigned numbers 1 through 12 A person assigned a number of 5 or less is chosen.

Click here to see answer by rfer(333)

Question 201828: A group of 12 people are assigned numbers1 through 12 A person assigned a number of or less is chosen.
: A group of 12 people are assigned numbers1 through 12 A person assigned a number of or less is chosen.

Click here to see answer by rfer(333)

Question 201809: A box contains 2 black balls and 3 gold balls. 2 balls are randomly drawn in succession from the box.
A. If there is no replacement, what is the probability that both balls are black?
B. If there is replacement before the secon draw, what is the probability that both balls are black?
Thanks!: A box contains 2 black balls and 3 gold balls. 2 balls are randomly drawn in succession from the box.
A. If there is no replacement, what is the probability that both balls are black?
B. If there is replacement before the secon draw, what is the probability that both balls are black?
Thanks!
Click here to see answer by rfer(333)

Question 201822: Figure:Spinner divided into 8 segments: One 3,Two 4's,Two 1's,Three 2's

Referring to the figure , think about spinning the spinner,
which is divided into eight equal segments. Give the probability
against spinning 2 in lowest terms: _____

: Figure:Spinner divided into 8 segments: One 3,Two 4's,Two 1's,Three 2's

Referring to the figure , think about spinning the spinner,
which is divided into eight equal segments. Give the probability
against spinning 2 in lowest terms: _____

Click here to see answer by RAY100(776)

Question 201721: Figure:Spinner 8 segments:Three 2's,Two 4's,Two 1's,One 3

Referring to the figure think about spinning the spinner,
which is divided into eight equal segments. Give the probability
against spinning 2 in lowest terms: _____
: Figure:Spinner 8 segments:Three 2's,Two 4's,Two 1's,One 3

Referring to the figure think about spinning the spinner,
which is divided into eight equal segments. Give the probability
against spinning 2 in lowest terms: _____

Click here to see answer by rfer(333)

Question 201593: there are 20 seniors serving the student council of a certain high school.of these, 3 have not served before, 10 served on the council in their junior years, 9 in the sophomore years, and 11 in their freshmen years. there are 5 who served during both their sophomore and junior years, and 4 during both their freshmanand sophomore years. how many seniors served on the student council during each of the four years in high school?: there are 20 seniors serving the student council of a certain high school.of these, 3 have not served before, 10 served on the council in their junior years, 9 in the sophomore years, and 11 in their freshmen years. there are 5 who served during both their sophomore and junior years, and 4 during both their freshmanand sophomore years. how many seniors served on the student council during each of the four years in high school?
Click here to see answer by rfer(333)

Question 201622: Please give me full information on Properties on Circles.
Thanks.: Please give me full information on Properties on Circles.
Thanks.
Click here to see answer by Alan3354(3901)

Question 200172: what is the probability that a family with four children, whose first child is a boy, will have exactly two boys in the family?: what is the probability that a family with four children, whose first child is a boy, will have exactly two boys in the family?
Click here to see answer by javeria13(7)

Question 201540: Card figure: 1 A, 2 B's, 3 C's
Referring to the figure in Question #26, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(B, 4) = _____
: Card figure: 1 A, 2 B's, 3 C's
Referring to the figure in Question #26, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(B, 4) = _____

Click here to see answer by rfer(333)

Question 201603: Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure in, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(C number greater than 4)=: Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure in, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(C number greater than 4)=
Click here to see answer by RAY100(776)

Question 201602: Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P=(Not B,5): Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P=(Not B,5)
Click here to see answer by rfer(333)

Question 201604: Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(B,number less than 5): Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(B,number less than 5)
Click here to see answer by RAY100(776)

Question 201605: Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(A,not 2)=: Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(A,not 2)=
Click here to see answer by rfer(333)

Question 201541: Card figure: 1 A, 2 B's, 3 C's
Referring to the figure in Question #26, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P,(B,odd number): Card figure: 1 A, 2 B's, 3 C's
Referring to the figure in Question #26, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P,(B,odd number)
Click here to see answer by rfer(333)

Question 201607: Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure, think about first picking a card and
then rolling the die. Give the probability in simplest form.P(not B,not even): Card Figure: 1 A , 2 B's, & 3 C's. Die 1/6

Referring to the figure, think about first picking a card and
then rolling the die. Give the probability in simplest form.P(not B,not even)
Click here to see answer by stanbon(22894)

Question 201577: Shaver Manufacturing, Inc. offers dental insurance to its employees. A recent study by the human resource director shows the annual cost per employee per year followed the normal probability distribution, with a mean of $1,280 and a standard deviation of $420 per year.
a. What fraction of the employees cost more than $1,500 per year for dental expenses?
b. What fraction of the employees cost between $1,500 and $2,000 per year?
c. Estimate the percent that did not have any dental expense.
d. What was the cost for the 10 percent of employees who incurred the highest dental expense?
: Shaver Manufacturing, Inc. offers dental insurance to its employees. A recent study by the human resource director shows the annual cost per employee per year followed the normal probability distribution, with a mean of $1,280 and a standard deviation of $420 per year.
a. What fraction of the employees cost more than $1,500 per year for dental expenses?
b. What fraction of the employees cost between $1,500 and $2,000 per year?
c. Estimate the percent that did not have any dental expense.
d. What was the cost for the 10 percent of employees who incurred the highest dental expense?

Click here to see answer by Theo(26)

Question 201533: A bag of marbles contains 6 red marbles and 4 blue marbles. If two are selected
simultaneously, what is the probability that at least 1 blue marble is drawn?: A bag of marbles contains 6 red marbles and 4 blue marbles. If two are selected
simultaneously, what is the probability that at least 1 blue marble is drawn?
Click here to see answer by stanbon(22894)

Question 201518: If a tire has a mean mileage of 60,000 miles and a standard deviation of 2,000, and the company doesn't want to have a replacement expense of more than 4%, what is the minimum guaranteed mileage for the tire?: If a tire has a mean mileage of 60,000 miles and a standard deviation of 2,000, and the company doesn't want to have a replacement expense of more than 4%, what is the minimum guaranteed mileage for the tire?
Click here to see answer by stanbon(22894)

Question 201542: Card figure: 1 A, 2 B's, 3 C's

Referring to the figure in Question #26, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(C,even number): Card figure: 1 A, 2 B's, 3 C's

Referring to the figure in Question #26, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(C,even number)
Click here to see answer by stanbon(22894)

Question 201543: Card figure: 1 A, 2 B's, 3 C's

Referring to the figure in Question #26, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(not A,6): Card figure: 1 A, 2 B's, 3 C's

Referring to the figure in Question #26, think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(not A,6)
Click here to see answer by stanbon(22894)

Question 201545: On any given night, Becky has a 60% chance of seeing a shooting star in any given hour. If Becky watches the sky for two hours, find the following probabilities
a. What is the probability that Becky sees a shooting star in both hours?
b. What is the probability that Becky sees a shooting star in exactly one hour?
c. What is the probability that Becky does not see a shooting star at all?
d. Given that Becky did not see a shooting star in the first hour, what is the probability that she will see one in the second hour?
: On any given night, Becky has a 60% chance of seeing a shooting star in any given hour. If Becky watches the sky for two hours, find the following probabilities
a. What is the probability that Becky sees a shooting star in both hours?
b. What is the probability that Becky sees a shooting star in exactly one hour?
c. What is the probability that Becky does not see a shooting star at all?
d. Given that Becky did not see a shooting star in the first hour, what is the probability that she will see one in the second hour?

Click here to see answer by stanbon(22894)

Question 201535: A number is chosen at random between 1 and 25, inclusive. Express as a percent,
the probability that it is prime.: A number is chosen at random between 1 and 25, inclusive. Express as a percent,
the probability that it is prime.
Click here to see answer by solver91311(4032)

Question 201490: Consider a standard deck of playing cards (52 cards, no jokers). If you draw one card, what is the probability that the card is:
a. a spade?
b. a seven (7)?
c. a seven (7) and a spade?
d. a seven (7) or a spade?
: Consider a standard deck of playing cards (52 cards, no jokers). If you draw one card, what is the probability that the card is:
a. a spade?
b. a seven (7)?
c. a seven (7) and a spade?
d. a seven (7) or a spade?

Click here to see answer by Edwin McCravy(2514)

Question 201488: Consider a standard deck of playing cards (52 cards, no jokers). If you draw two cards, what is the probability that the cards are:
a. two spades?
b. two kings?
c. two mismatched cards (do not share suit or face value)?
d. two queens?
e. any pair (same face value)?
f. two matching cards (have either same suit or same face value)?
: Consider a standard deck of playing cards (52 cards, no jokers). If you draw two cards, what is the probability that the cards are:
a. two spades?
b. two kings?
c. two mismatched cards (do not share suit or face value)?
d. two queens?
e. any pair (same face value)?
f. two matching cards (have either same suit or same face value)?

Click here to see answer by Edwin McCravy(2514)

Question 201354This question is from textbook Mathematics
: Solve the following problems using the Russian peasant algorithm 25 X 17 48 X 39 and 120 X 42
This question is from textbook Mathematics
: Solve the following problems using the Russian peasant algorithm 25 X 17 48 X 39 and 120 X 42

Click here to see answer by RAY100(776)

Question 201282: Referring to the figure: 6 cards:One A Two B's & Three B's;Then roll the die(1 out of six)

think about first picking a card and
then rolling the die. Give the probability in simplest form.P(C, 6): Referring to the figure: 6 cards:One A Two B's & Three B's;Then roll the die(1 out of six)

think about first picking a card and
then rolling the die. Give the probability in simplest form.P(C, 6)
Click here to see answer by Alan3354(3901)

Question 201280: Referring to the figure: 6 cards:One,A Two B's & Three B's;Then roll the die(1 out of six)

think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(A, 1) = _____: Referring to the figure: 6 cards:One,A Two B's & Three B's;Then roll the die(1 out of six)

think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(A, 1) = _____
Click here to see answer by javeria13(7)

Question 201283: Referring to the figure: 6 cards:One A Two B's & Three B's;Then roll the die(1 out of six)

think about first picking a card and
then rolling the die. Give the probability in simplest form.(A, even number): Referring to the figure: 6 cards:One A Two B's & Three B's;Then roll the die(1 out of six)

think about first picking a card and
then rolling the die. Give the probability in simplest form.(A, even number)
Click here to see answer by javeria13(7)

Question 201281: R: R
Click here to see answer by javeria13(7)

Question 201218This question is from textbook statistics techniques in business and economics
: a recent issue of bride magazine suggested that couples planning their wedding should expect two-thirds of those who are sent am invitation to respond that they will attend. rich and stacy are planning to be married later this year. They plan to send 197 invitations
Question: what is the probability exactly 140 will accept the invitation?This question is from textbook statistics techniques in business and economics
: a recent issue of bride magazine suggested that couples planning their wedding should expect two-thirds of those who are sent am invitation to respond that they will attend. rich and stacy are planning to be married later this year. They plan to send 197 invitations
Question: what is the probability exactly 140 will accept the invitation?
Click here to see answer by stanbon(22894)

Question 201221This question is from textbook statistics techniques in business and economics
: A normal population has a mean of 80.0 and a standard deviation of 14.0
Question C= compute the probability of a value between 55.0 and 70.0This question is from textbook statistics techniques in business and economics
: A normal population has a mean of 80.0 and a standard deviation of 14.0
Question C= compute the probability of a value between 55.0 and 70.0
Click here to see answer by Edwin McCravy(2514)

Question 201212This question is from textbook statistics techniques business and economics
: StatisticsThis question is from textbook statistics techniques business and economics
: Statistics
Click here to see answer by Alan3354(3901)

Question 201076: Spinner Image:Two 1's,Two 4's,Three 2's,and ,One 3,

Think about spinning this spinner, which is
divided into 8 equal segments. Give the probability in simplest form.
P(even) = _____
: Spinner Image:Two 1's,Two 4's,Three 2's,and ,One 3,

Think about spinning this spinner, which is
divided into 8 equal segments. Give the probability in simplest form.
P(even) = _____

Click here to see answer by MathTherapy(97)

Question 201092: 6 cards: One A,Two B's,Three C's / Die:6 Sides

think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(A, 1) = _____
: 6 cards: One A,Two B's,Three C's / Die:6 Sides

think about first picking a card and
then rolling the die. Give the probability in simplest form.
P(A, 1) = _____

Click here to see answer by stanbon(22894)

Question 201077: Spinner Image:Two 1's,Two 4's,Three 2's,and ,One 3,

think about spinning this spinner, which is
divided into 8 equal segments. Give the probability in simplest form.
P(not 2) = _____: Spinner Image:Two 1's,Two 4's,Three 2's,and ,One 3,

think about spinning this spinner, which is
divided into 8 equal segments. Give the probability in simplest form.
P(not 2) = _____
Click here to see answer by Alan3354(3901)

Question 201082: Below is a sample space for a family with 3 children. BGG stands for
the oldest child being a boy, the middle child a girl, and the youngest
a girl. Use the sample space to answer the question:
What is the probability (in simplest form) that the middle child is a
a boy? _____
Sample Space
BBB
BBG
BGB
BGG
GBB
GBG
GGB
GGG : Below is a sample space for a family with 3 children. BGG stands for
the oldest child being a boy, the middle child a girl, and the youngest
a girl. Use the sample space to answer the question:
What is the probability (in simplest form) that the middle child is a
a boy? _____
Sample Space
BBB
BBG
BGB
BGG
GBB
GBG
GGB
GGG
Click here to see answer by jim_thompson5910(12548)