Suppose approximately 50%50% of all students study after midnight. For random sample of n=3 students, let X be the number of students that study after midnight. a. Complete the following table for the binomial distribution of X X P(X) 0 1 2 3 Round your answers to 4 decimal places Determine the mean and standard deviation of X b. The expected value of X is = . Round your answer to 4 decimal places c. The standard deviation of X is = . Round your answer to 4 decimal places
Suppose approximately 50%50% of all students study after midnight. For random sample of n=3 students, let X be the number of students that study after midnight. a. Complete the following table for the binomial distribution of X X P(X) 0 1 2 3 Round your answers to 4 decimal places Determine the mean and standard deviation of X b. The expected value of X is = . Round your answer to 4 decimal places c. The standard deviation of X is = . Round your answer to 4 decimal places
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...
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Suppose approximately 50%50% of all students study after midnight.
For random sample of n=3 students, let X be the number of students that study after midnight.
a. Complete the following table for the binomial distribution of X
X | P(X) |
---|---|
0 |
|
1 |
|
2 |
|
3 |
|
Round your answers to 4 decimal places
Determine the mean and standard deviation of X
b. The expected value of X is =
.
Round your answer to 4 decimal places
c. The standard deviation of X is =
.
Round your answer to 4 decimal places
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