SOLUTION: (a)A supplier of company X makes on an average of 5 defective pieces. The company accepts a sample if there are no more than 7 defective pieces. What are the chances that the compa

Question 908974: (a)A supplier of company X makes on an average of 5 defective pieces. The company accepts a sample if there are no more than 7 defective pieces. What are the chances that the company will reject the sample?
(b)The chances of Anne winning a game are 55%. What is the probability of Anne winning the game in 3rd trial?
(c)The chances a customer will make a purchase is 60%. Then the probability of 5th purchase in 12th customers is
(d)The mean temperature in a city is 25�C and the standard deviation is 3�C in the month of April. Assuming this data is normally distributed, how many days in April would you expect the mean temperature to be between 22�C and 28�C?

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Recognizing Probability Distribution:
a)Poisson Distribution (average)
b)Binomial Distribution (winning 0r Losing)
c)Binomial Distribution (buying or not buying)
d)Normal Distribution (mean and sd)
Answering the various examples of Probability Distributions:
a)P(x > 7) = 1 - poissoncdf(5,7) = .1334 0r 13.34%
b)p(winning) = .55, n = 3, P(x = 1) = binompdf(3, .55,1)= .3341, .3341/(3C1) = .1114, winning on 3rd try
c)p(purchase) = .60, n = 12, P(x=5) = binompdf(12, .60, 5)= .1009/(12C5), 12th customer makes 5th purchase
d)P(22 < x < 28) = nomalcdf(22,28,25,3)
nomalcdf(22,28,25,3)x30days is the number of days
RELATED QUESTIONS
A company manufactures screws and nuts. For every 1000 pieces they manufacture, there are (answered by mathmate)

A company manufactures screws and nuts. For every 1000 pieces they manufacture, there are (answered by mathmate)

Six percent of the computer chips are produced by Cheap Chips are defective. Each month a (answered by stanbon)

8.A computer assembling company receives 24% of parts from supplier X, 36% of parts from... (answered by robertb)

In a batch of 2000 calculators, there are on average, 8 defective ones. If a random... (answered by stanbon)

It is thought that, on average, 3% of light bulbs produced by a certain company last for... (answered by ewatrrr)

The number of defective pieces in a sample of 20 bulbs are Number of defective (answered by stanbon,skartikey)

The A. B. Company buys calculators from a Korean supplier. The probability of a... (answered by stanbon)

The A. B. Company buys calculators from a Korean supplier. The probability of a... (answered by mducky2)