Tutors Answer Your Questions about Finance (FREE)
Question 1178777: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum possible score on the test was 110, while the mean score was 71 and the standard deviation was 8.
47
55
63
71
79
87
95
Use the 68-95-99.7 Rule (Empirical Rule), not a calculator or other technology, to answer the following.
What is the approximate percentage of students who scored less than 55 on the test?
%
What is the approximate percentage of students who scored between 71 and 79 on the test?
%
What is the approximate percentage of students who scored between 55 and 87 on the test?
%
What is the approximate percentage students who scored between 63 and 79 on the test?
%
Click here to see answer by ikleyn(52781)   |
Question 1178778: Use the 68-95-99.7 Rule (Empirical Rule) to answer the following. (Do not use technology. Technology will give a slightly different answer.)
Assume that the weight of 1-year-old girls in the USA is normally distributed with Mean = 9.6 kg, Standard Deviation = 1.2 kg.
(a) 68% of the data is between which 2 values?
kg --
kg (increasing order)
(b) 95% of the data is between which 2 values?
kg --
kg (increasing order)
(c) What percentage of the data is less than 8.4 kg?
%
(d) What percentage of the data is more than 13.2 kg?
%
Click here to see answer by ikleyn(52781) |
Question 1178791: Compute the mean from the following table using sum and round function
score:9,7,15,16,17,14
frequency:3,7,8,5,9,6
mean=
Round up to 3 decimal places if necessary.
Click here to see answer by MathLover1(20849)  |
Question 1178791: Compute the mean from the following table using sum and round function
score:9,7,15,16,17,14
frequency:3,7,8,5,9,6
mean=
Round up to 3 decimal places if necessary.
Click here to see answer by ikleyn(52781) |
Question 1178767: Instruction: Read and study the case of Me.castro, recently operates it's buy and sell business of an ornamental and aquatic fish. For the month of February 2021,he earned ₱150,000.00.As record, he spent a hundred thousand pesos(₱100,000.00)for his expenses.Mr. castro had doubts with the expenses recorded by his cashier:
Aircon Repair(mr.castro residence)-₱12,000.00
Mr.castro,life insurance-₱15,000.00
Rent expense-20,000.00
Utilities expense (mr.castro residence)-4,800.00
Utilities expense (A&Z Aquatic fishes)-5,200.00
Salaries expense-35,000.00
Representation (family dinner)- 8,000.00
Total. ₱100,000.00
Compute the following:
1.How much is the total expenses?
2.How much is the total income of Mr.castro for the month of February,2021?
Click here to see answer by ikleyn(52781) |
Question 1178800: In the following addition problem, each letter represents one of the digits
0, 1, 2, 3, 4, 5, 6, 7, 8, or 9. The leading digits represented by A and B
are nonzero digits.
What digit is represented by each letter?
A
+ B B
______
A D D
Click here to see answer by ikleyn(52781) |
Question 1178800: In the following addition problem, each letter represents one of the digits
0, 1, 2, 3, 4, 5, 6, 7, 8, or 9. The leading digits represented by A and B
are nonzero digits.
What digit is represented by each letter?
A
+ B B
______
A D D
Click here to see answer by Edwin McCravy(20055)  |
Question 1178799: Four people on one side of a river need to cross the river in a boat that can carry a maximum load of 180 pounds. The weights of the people are 80, 100, 150, and 170 pounds. What is the minimum number of crossings that must be made by the boat?
Click here to see answer by Edwin McCravy(20055) |
Question 1178802: Each of four siblings (Edmund, Genalyn, Madelyn, and Sonia) bought four
different cars. One chooses a Honda, a Mitsubishi, a Toyota, and a Suzuki
car. From the following clues, determine which sibling bought which car.
a. Edmund, living alone, stays next door to his sister who bought the Honda
car and very far from his sister who bought the Suzuki car.
b. Genalyn, also living alone, is younger than the one who bought the
Mitsubishi car and older than her sibling who bought the Toyota car.
c.Madelyn did not like Toyota and Suzuki cars. But she and her sibling, who
bought the Toyota car, live in the same house.
Click here to see answer by Edwin McCravy(20055) |
Question 1178801: Sixty-five students went to zoo with: 3 had hamburger, milk, and cake, 5 had hamburger and milk, 10 had cake and milk, 10 had hamburger and cake, 24 had hamburger, 38 had cake, and 20 had milk. How many students had nothing?
Click here to see answer by ikleyn(52781) |
Question 1178793: The mass of a species of mouse commonly found in houses is normally distributed with a mean of 20 grams with a standard deviation of 0.15 grams.
For parts (a) through (c), enter your responses as a decimal with 2 decimal places.
a) What percentage of mice have a mass of MORE than 19.805 grams?
%
b) What percentage of mice have a mass of LESS than 20.06 grams?
%
c) What percentage of mice have a mass between 19.805 and 20.06 grams?
%
d) 83 % of all mice have a mass of less than
grams.
Click here to see answer by ewatrrr(24785)  |
Question 1178750: X 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12
P(X) 1/36 2/36 3/36 4/36 5/36 6/36 5/36 4/36 3/36 2/36 1/36
1.What value of x has the highest probability?
2.What is the range of x that has a probability above 4/36?
3.What is the sum of the probabilities from 2 to 12?
4.What is the shape of the graph of the distribution?
Click here to see answer by Solver92311(821)  |
Question 1178904: Hugh Feridan bought a new car for $18,200. He estimates the car will be worth $11,600 in 3 years. What is the estimated average annual depreciation? What is the estimated rate of depreciation to the nearest whole percent?
Click here to see answer by Theo(13342)  |
Question 1178780: Americans receive an average of 18 Christmas cards each year. Suppose the number of Christmas cards is normally distributed with a standard deviation of 5. Let X be the number of Christmas cards received by a randomly selected American. Round all answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N( ,)
b. If an American is randomly chosen, find the probability that this American will receive no more than 21 Christmas cards this year.
(Round z-score up to 2 decimal places.)
c. If an American is randomly chosen, find the probability that this American will receive between 19 and 24 Christmas cards this year.
(Round z-score up to 2 decimal places.)
d. 82% of all Americans receive at most how many Christmas cards? (Please enter a whole number)
Click here to see answer by Boreal(15235)  |
Question 1179066: The human resources department of a manufacturing firm found the average number of absences to be 3.4 per day. In the five days following unsuccessful labor negotiations there were a total of 39 absences, but the negotiators claimed that they were from ordinary illnesses. What is the probability of at least 39 absences in 5 days? Assume a Poisson distribution.
Click here to see answer by ewatrrr(24785) |
Question 1179161: A person wishes to have $28,000 cash for a new car 3 years from now. How much should be placed in an account now, if the account pays 6.1% annual interest rate, compounded weekly?
Please explain to me this question step-by-step.
Homework question from Hans Beauvoir
Click here to see answer by mananth(16946)  |
Question 1179306: The proportion of individuals in the United States who reported being “very happy” or “rather happy” in 2014 was 0.732. In a 2020 survey of 1,125 Russian adults, 776 respondents reported being “very happy” or “rather happy”. Has the proportion of Russian adults who are “very happy” or “rather happy” changed significantly since 2014? Use α = 0.05.
What are the mean and sd of the sampling distribution?
Click here to see answer by ikleyn(52781) |
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