Posted: September 13th, 2017

Statistics

A fair 6-faced die is rolled two times. Let A be the event that the outcome of the first roll is a multiple of 3, and B be the event that the outcome of second roll is greater than 4.

7. What is the probability that the outcome of the second roll is greater than 4, given that the first roll is a multiple of

Statistical Analysis

aSSIGNMENT 05

MA260 Statistical Analysis I

NOTE: Show your work in the problems.

1. Compute the mean and variance of the following discrete probability distribution.

x          P(x)

2          .50

8          .30

10        .20

1. Define the term standard deviation. Why is it important to know the standard deviation for a given sample? A sample of n=20 has a mean of M = 40. If the standard deviation is s=5, would a score of X= 55 be considered an extreme value? Why or why not?

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