Homework Help is Here – Start Your Trial Now!
Math
Probability
obability that X exceeds its mean value by more than 1 standa shipment of 400 refrigerators, of which 40 have defective comp at least approximately) P(X s 3) than to use the hypergeomet ate the hypergeometric distribution with the Select-

obability that X exceeds its mean value by more than 1 standa shipment of 400 refrigerators, of which 40 have defective comp at least approximately) P(X s 3) than to use the hypergeomet ate the hypergeometric distribution with the Select-

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
See similar textbooks
icon
Related questions
Question
100%
ASK YOUR TEACHER Each of 13 refrigerators of a certain type has been returned to a distributor because of an audible, high-pitched, oscillating noise when the refrigerators are running. Suppose that 8 of these refrigerators have a defective compressor and the other 5 have less serious problems. If the refrigerators are examined in random order, let X be the number among the first 6 examined that have a defective compressor. (a) Calculate P(X= 4) and P(X s 4). (Round your answers to four decimal places.) P(X= 4) = P(X ≤ 4) = (b) Determine the probability that X exceeds its mean value by more than 1 standard deviation. (Round your answer to four decimal places.) (c) Consider a large shipment of 400 refrigerators, of which 40 have defective compressors. If X is the number among 20 randomly selected refrigerators that have defective compressors, describe a less tedious way to calculate (at least approximately) P(X ≤ 3) than to use the hypergeometric pmf. distribution if the population size and the number of successes are large. Here n- We can approximate the hypergeometric distribution with the Select- P = M/N- Approximate P(X ≤ 3) using that method. (Round your answer to three decimal places.) P(X ≤ 3) = You may need to use the appropriate table in the Appendix of Tables to answer this question. PRACTICE ANOTHER and
Transcribed Image Text:ASK YOUR TEACHER Each of 13 refrigerators of a certain type has been returned to a distributor because of an audible, high-pitched, oscillating noise when the refrigerators are running. Suppose that 8 of these refrigerators have a defective compressor and the other 5 have less serious problems. If the refrigerators are examined in random order, let X be the number among the first 6 examined that have a defective compressor. (a) Calculate P(X= 4) and P(X s 4). (Round your answers to four decimal places.) P(X= 4) = P(X ≤ 4) = (b) Determine the probability that X exceeds its mean value by more than 1 standard deviation. (Round your answer to four decimal places.) (c) Consider a large shipment of 400 refrigerators, of which 40 have defective compressors. If X is the number among 20 randomly selected refrigerators that have defective compressors, describe a less tedious way to calculate (at least approximately) P(X ≤ 3) than to use the hypergeometric pmf. distribution if the population size and the number of successes are large. Here n- We can approximate the hypergeometric distribution with the Select- P = M/N- Approximate P(X ≤ 3) using that method. (Round your answer to three decimal places.) P(X ≤ 3) = You may need to use the appropriate table in the Appendix of Tables to answer this question. PRACTICE ANOTHER and
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON
SEE MORE TEXTBOOKS