Tutors Answer Your Questions about Finance (FREE)
Question 1180679: Roll a fair die five times. List the results and take all random samples of size n = 3.
Calculate the population mean, population variance, and population standard
deviation. Illustrate the sampling distributions of the sample means and sample
variances and standard deviations.
Click here to see answer by ikleyn(52781)   |
Question 1180682: the total cost (in dollars) for a company to produce x items per week is C=7x+400. the revenue for selling all x items is R=34x-0.1x^2. how many items must it produce and sell each week for its weekly profit to be $1,300?
Click here to see answer by ikleyn(52781) |
Question 1180676: The total cost ( in dollars) for a company to produce x items per week is C equals 7x+400. The revenue for selling all X items is R equals 34X -0.1 X squared. How many items must it produce and sell each week for its weekly profit to be 1300?
Click here to see answer by ikleyn(52781) |
Question 1180703: Frieda’s employer offers her family health care as an employee benefit. Frieda must contribute 12% of the cost, and her employer will cover the rest. Frieda gets paid on a biweekly basis, and she notices that $88.50 is taken out of each paycheck for her portion of the contribution to the family health care coverage.
How much does Frieda’s employer contribute for her coverage?
Click here to see answer by ikleyn(52781) |
Question 1180685: Roll a fair die five times. List the results and take all random samples of size n = 3.
Calculate the population mean, population variance, and population standard
deviation. Illustrate the sampling distributions of the sample means and sample
variances and standard deviations.
Peace... I just want to know how to do it.
Click here to see answer by MathLover1(20849)  |
Question 1180685: Roll a fair die five times. List the results and take all random samples of size n = 3.
Calculate the population mean, population variance, and population standard
deviation. Illustrate the sampling distributions of the sample means and sample
variances and standard deviations.
Peace... I just want to know how to do it.
Click here to see answer by ikleyn(52781) |
Question 1180689: Roll a fair die five times. List the results and take all random samples of size n = 3.
Calculate the population mean, population variance, and population standard
deviation. Illustrate the sampling distributions of the sample means and sample
variances and standard deviations.
I can't understand this. Please help me with this
Click here to see answer by MathLover1(20849) |
Question 1180689: Roll a fair die five times. List the results and take all random samples of size n = 3.
Calculate the population mean, population variance, and population standard
deviation. Illustrate the sampling distributions of the sample means and sample
variances and standard deviations.
I can't understand this. Please help me with this
Click here to see answer by ikleyn(52781) |
Question 1180744: 1.Which of the following describes discrete random
variable?
A. Number of bicycles sold in 1 year by a large
sporting goods store.
B. Times it takes to cut down a lawn.
C. Weights of fish caught in Davao Lake
D. Marital status of faculty members in a large
university.
2.If a die is rolled once, what is the probability of getting a
number greater than 2?
A. 1/6
8. 2/3
C. 1/2
D. 5/6
Click here to see answer by ikleyn(52781) |
Question 1180747: 12. What is the probability between 3 and 6?
A.1/8 B.11/40 C.½ D.3/4
13. Find the probability between 3 and 6?
A.1/8 B.¼ C.3/8 D.3/4
14. Which of the following statements is true?
A. The sum of the probabilities in a probability distribution
is equal to 1.
B. The mean of the probabilities in a probability
distribution is always equal to 1.
C. The probability P(x) of each value of the random
variable must be 0 < P(X) < 1.
D. The sum of the probabilities in a probability distribution
is less than or equal to 1.
Click here to see answer by ikleyn(52781) |
Question 1180746: 9. What does the mean of the above probability
distribution tell us?
A. The average number of typhoons entering the
country per month is 0.4.
B. The average number of typhoons entering the
country per month is 1.4.
C. The average number of typhoons entering the
country per month is 2.4.
D. The average number of typhoons entering the
country per month is 3.4.
10. Refer to Item no. 14. What is the variance of the
probability distribution?
A. 1.24 B. 1.54
C. 1.84
D. 2.14
11. Diosele has grades 86, 68 and 79 in her first three tests in
Statistics. What grade must she obtain on the fourth test
to get an average of 78?
A. 76 B. 77 C. 78
D. 79
Click here to see answer by ikleyn(52781) |
Question 1180739: You decide to make cake mix cookies to sell. Boxed chocolate cake mix is $4; eggs are $4/dozen; oil is $3/pint; and crushed mint hard candies, at $3/lb. You need one boxed mix and one egg per recipe; a pint of oil will make 10 recipes; and a pound of crushed mint hard candies will make 5 recipes. The recipe makes 30 cookies. Bags and twist ties to bag up the cookies each cost $3/100. A store has agreed to buy your cookies at $1.50 for a bag of 6 cookies. You will use your own kitchen and cookware, to pay an extra $25/month for power, and an extra $30/month for water and such to wash up. You plan to make 500 bags of 6 cookies a month, so it will take 100 recipes to do it all. What is the fixed cost per bag of 6 cookies? What is the variable cost of a bag of 6 cookies? What is the total cost of a bag of 6 cookies? What is the net profit of selling 500 bags of cookies at $1.50 each? The cookies sell like crazy, and the buyer is willing to pay you $1.75 for the sixpack of cookies, if you’ll make 1000 sixpacks. What will the profit be?
Click here to see answer by ikleyn(52781) |
Question 1180737: You plan to start making gribbets. You are able to rent a facility for $200 a month, and you have three folks who will put in two hours a night, three days a week, making gribbets with you. Each of them will receive $300 a month. To make a gribbet, you need 4 whoozits at $3 per whoozit; you need 2 gimcracks for the whoozits to connect between, at $4 per gimcrack; and it takes a gadget to be in the middle, at $8 per gadget. You and your team can make 450 gribbets per month. You figure you can sell your gribbets for $35 each. Calculate the fixed costs per gribbet, and the variable cost per gribbet, the “break even” price for a gribbet and the profit or loss per month on those 450 gribbets.
Click here to see answer by ikleyn(52781) |
Question 1180738: You are making backpacks for a missionary to give to school children where the missionary ministers. Each backpack will have a children's bible, two pencils, a notebook, and an eraser. For the youngest children, there will be a stuffed, fuzzy toy, a box of crayons and a pen. The children in the middle group will get two pens, a ruler and an extra pencil. The oldest group of children will the ruler, a compass, and three pens as well as the rest of the material. There are 212 pencils, 188 pens and 92 backpacks. How many children at each age group?
Click here to see answer by ikleyn(52781) |
Question 1180768: In describing her plot of land to the surveyor Jemma provided the following details: One side is lined by a 40m fence. Another side runs parallel to the road for 22meters. Those two sides create a 30 degree angle between them. The inspector says this information can create 2 different triangular plots of land. Show work to calculate the remaining angles and the third side of the triangle for both possible plots of land. Round your measurements to the tenths place.
Click here to see answer by greenestamps(13200)  |
Question 1180768: In describing her plot of land to the surveyor Jemma provided the following details: One side is lined by a 40m fence. Another side runs parallel to the road for 22meters. Those two sides create a 30 degree angle between them. The inspector says this information can create 2 different triangular plots of land. Show work to calculate the remaining angles and the third side of the triangle for both possible plots of land. Round your measurements to the tenths place.
Click here to see answer by ikleyn(52781) |
Question 1180077: The point P = (−5, 8) is in the second quadrant. You are used to describing it by using the
rectangular coordinates −5 and 8. It is also possible to accurately describe the location of P by using a
different pair of coordinates, P = (r; θ), called polar coordinates. The distance from the origin is r and θ
is an angle made with the positive x-axis in the counterclockwise direction. Calculate polar coordinates
for P, and notice that there is more than one correct answer.
Click here to see answer by Solver92311(821)  |
Question 1180858: A farmer has two tractors P and Q. Tractor P, working alone, can plough a piece of land in 5 hours while tractor Q would take 1.6667 hours less than tractor P.
(a) Determine the time the two tractors ploughing together,would take to complete the work. (3 marks)
(b) One day, the tractors started to plough the piece of land together. After 40 minutes,tractor P broke down but Q continued alone and completed the work.
Calculate the total time taken to plough the piece of land that day. (4 marks)
(c) In another season, the farmer hired an additional tractor R to assist P and Q which retained the same rate of working as before. The three tractors took I hour 12 minutes to plough the same piece of land. The owner of tractor R was paid some money proportional to the work done by the tractor.
If the total work was valued at ksh 20000 , find the amount of money paid to the owner of tractor R.
Click here to see answer by ikleyn(52781) |
Question 1180858: A farmer has two tractors P and Q. Tractor P, working alone, can plough a piece of land in 5 hours while tractor Q would take 1.6667 hours less than tractor P.
(a) Determine the time the two tractors ploughing together,would take to complete the work. (3 marks)
(b) One day, the tractors started to plough the piece of land together. After 40 minutes,tractor P broke down but Q continued alone and completed the work.
Calculate the total time taken to plough the piece of land that day. (4 marks)
(c) In another season, the farmer hired an additional tractor R to assist P and Q which retained the same rate of working as before. The three tractors took I hour 12 minutes to plough the same piece of land. The owner of tractor R was paid some money proportional to the work done by the tractor.
If the total work was valued at ksh 20000 , find the amount of money paid to the owner of tractor R.
Click here to see answer by greenestamps(13200) |
Question 1180857: A farmer has two tractors P and Q. Tractor P, working alone, can plough a piece of land in 5 hours while tractor Q would take 1 hours less than tractor P.
(a) Determine the time the two tractors ploughing together,would take to complete the work. (3 marks)
(b) One day, the tractors started to plough the piece of land together. After 40 minutes,tractor P broke down but Q continued alone and completed the work.
Calculate the total time taken to plough the piece of land that day. (4 marks)
(c) In another season, the farmer hired an additional tractor R to assist P and Q which retained the same rate of working as before. The three tractors took I hour 12 minutes to plough the same piece of land. The owner of tractor R was paid some money proportional to the work done by the tractor.
If the total work was valued at ksh 20000 , find the amount of money paid to the owner of tractor R.
Click here to see answer by ikleyn(52781) |
Question 1180475: A national magazine claims that the average college student watches less television than the general public. The national average is 30 hours per week, with a standard deviation of 1.5 hours. A sample of 40 college students has a mean of 26 hours. Alpha=0.05. Find H0 and H1. Is there enough evidence to reject the claim?
Click here to see answer by Boreal(15235)  |
Question 1180926: Two pumps are used to empty a tank filled with water. When working together they can empty the tank in 6 hours. One pump can empty it in 2 hours less than the other, which can do it alone.
How long would it take for each pump to empty the single tank
Click here to see answer by josgarithmetic(39617) |
Question 1180925: Two pumps are used to empty a tank filled with water. When working together they can empty the tank in 6 hours. One pump can empty it in 2 hours less than the other, which can do it alone.
How long would it take for each pump to empty the single tank
Click here to see answer by josgarithmetic(39617) |
Question 1181002: A boy of height 1.7m is standing 20m away from a flag staff on the same level ground. He observed that the angle of elevation of the top of the flag staff is 24degree. Calculate the height of the flag staff
Click here to see answer by ikleyn(52781) |
Question 1180987: A woman bought 130kg of tomatoes for ghc 5.20. she sold half of them at a profit of 30%. The rest of the tomatoes began to go bad, she then reduced the selling price per kg by 12%.
1. Calculate the new selling price per kg.
2. The percentage profit on the whole transaction if she threw away 5kg of bad tomatoes.
Click here to see answer by greenestamps(13200) |
Question 1181003: Which of these is a non-mutually exclusive event?
A. Rolling an 8 on a six-sided die
B. Getting four 5 balls in a row from the same lottery machine with 35 balls
C. Getting a head and a tail on a single coin toss
D. A pair of dice rolling 3 and 6
Click here to see answer by ikleyn(52781) |
Question 1181028: Which of these is a non-mutually exclusive event?
A. Rolling an 8 on a six-sided die
B. Getting four 5 balls in a row from the same lottery machine with 35 balls C. Getting a head and a tail on a single coin toss
D. A pair of dice rolling 3 and 6
Click here to see answer by ikleyn(52781) |
Question 1181093: A theater has tickets at $6 for adults, $3 for students and $2 for children under 12 years old. A total of 280 tickets were sold for one showing with total revenue of $910. If the number of adult tickets plus the number of student tickets was equal to the number of child tickets, then how many of each type of ticket were sold for the showing?
Click here to see answer by ikleyn(52781) |
Question 1181210: Graduation is 3 years away and you want to have $1150 available for a trip.If your bank is offering a 3-year CD (certificate of deposit) paying 3.6% simple interest, how much do you need to put in this CD to have the money for your trip?
Click here to see answer by ikleyn(52781) |
Question 1181259: 1.A ball is thrown horizontally out of the balcony with an initial horizontal speed of 1.8 m/s. If the balcony is 12m from the ground,
a. How much time will it take the ball to reach the ground?
b. What is the horizontal distance travelled by the ball before it hits the ground?
2. A missile is fired with an initial velocity of 85m/s at an angle 30º fdom the horizontal,
a. After how many seconds will the missile reach its highest point?
b. What is the maximum height reached by the missile?
c. Calculate the total horizontal distance travelled by the missile after it hits the ground. This is called the range.
Click here to see answer by ikleyn(52781) |
Question 1181271: Armando borrowed $1500 on a 3.5% discounted loan for a period of 20 months. What is the loan's discount? What is net amount of money Armando receives? What is the loan's actual rate of interest? (To the nearest hundredth of a percent)
Click here to see answer by ikleyn(52781) |
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