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3 Test
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Part 1 of 6 - Binomial Distribution
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Question 1 of 20
Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find the P(X
MATH302 B001 Fall 20
Tests & Quizzes
Tests & Quizzes

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Question 2 of 20
An unprepared student takes a 10 question TRUE/FALSE quiz and ended up guessing on all the
problems. Find
σ
. Round answer to 4 decimal places. Answer:

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Question 3 of 20
Approximately 8% of all people have blue eyes. A random sample of 20 people is selected, find
μ
.
Round to one decimal place. Answer:
1.6

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Question 5 of 20
Approximately 10% of all people are left-handed. Out of a random sample of 15 people, what is the

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Answer Key:
0.0428|.0428
Feedback:
P(x = 4), In Excel,
=BINOM.DIST(4,15,0.1,FALSE)
Part 2 of 6 - Contingency Tables
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Feedback:
20*.08
Question 4 of 20
A coin is flipped 30 times. What is the probability of getting 15 or more heads? Round answer to 4