Assume that the probability of making a mistake while addressing birthday invitation is 0.04 invitations are...
Assume that the probability of making a mistake while addressing birthday invitation is 0.04 invitations are randomly selected. Let X= the number of invitations selected until the first mistake is found.
a. What is the prob. that a mistake is found on the 12th try?
b. What is the expected number of invitations that must be examined to find the first mistake?
c. what is the standard deviation of X
In the example above, suppose you examine all 110 of the invitations you wrote.
c. what is the prob. you find more than four mistakes
d. how many mistakes do you expect to find?
e. what is the standard deviation of this distribution?
f. What is the 90th percentile for number of mistakes?
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Assume that the probability of making a mistake while addressing
birthday invitation is 0.04 invitations are...
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