subject
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.

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:00, evanwall91
If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3
Answers: 2
image
Mathematics, 21.06.2019 21:00, zalyndevola
Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction
Answers: 3
image
Mathematics, 22.06.2019 00:50, richard80
Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte
Answers: 3
image
Mathematics, 22.06.2019 01:30, isabelgalvarado2838
At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.
Answers: 2
You know the right answer?
Suppose that the weights of airline passenger bags are normally distributed with a mean of 49.53 pou...

Questions in other subjects:

Konu
Mathematics, 14.11.2019 23:31
Konu
Mathematics, 14.11.2019 23:31
Konu
Computers and Technology, 14.11.2019 23:31