Mathematics, 10.03.2020 21:26 norahramahi123

Suppose that the weights of airline passenger bags are normally distributed with a mean of 49.53 pounds and a standard deviation of 3.16 pounds.

a) What is the probability that the weight of a bag will be greater than the maximum allowable weight of 50 pounds? Give your answer to four decimal places.

b) Let X represent the weight of a randomly selected bag. For what value of c is P(E(X) - c < X < E(X) + c)=0.96? Give your answer to four decimal places.

c) Assume the weights of individual bags are independent. What is the expected number of bags out of a sample of 17 that weigh greater than 50 lbs? Give your answer to four decimal places.

d) Assuming the weights of individual bags are independent, what is the probability that 8 or fewer bags weigh greater than 50 pounds in a sample of size 17? Give your answer to four decimal places.

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 12:30

The polynomial function of least degree with a leading coefficient of 1 is: f(x) = x3 + ax2 + bx + c

Answers: 1

Answer

Mathematics, 21.06.2019 22:40

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

Answers: 3

Answer

Mathematics, 22.06.2019 00:30

What is the value of the discrimination for the quadratic equation 0=×2+2+×2

Answers: 2

Answer

Mathematics, 22.06.2019 01:00

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]

Answers: 1

Answer

You know the right answer?

Suppose that the weights of airline passenger bags are normally distributed with a mean of 49.53 pou...

Questions

Mathematics, 13.02.2021 01:00

Use the drawing tools to form the correct answer on the provided graph. Graph the line that represents the equation y=- - + 1 Drawing Too...

Mathematics, 13.02.2021 01:00

Find the interest for one interest period. The account balance is $529, the APR is 7% and interest is semiannually. What is the amount of interest ro...