Week 3 Test MATH302.pdf - 6/21/2020 APUS CLE : MATH302 D006...

6/21/2020 APUS CLE : MATH302 D006 Spr 20 : Tests & Quizzes
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Week 3 Test
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Part 1 of 6 - Binomial Distribution 4.0/ 5.0 Points
Question 1 of 20
It is known that 20% of adult workers have a high school diploma. If a random sample of 10 adult
workers is selected, what is the probability that 5 or more of them have a high school diploma? (That is, find P(X ≥ 5)
MATH302 D006 Spr 20
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Tests & Quizzes
Tests & Quizzes
1/9
Answer Key: 0.1586|.1586
1.0/ 1.0 Points
Answer Key: 0.0328|.0328
Feedback:
P(x = 1 - P(x , in Excel
=1-BINOM.DIST(4,10,0.2,TRUE)
Question 2 of 20
Approximately 8% of all people have blue eyes. A random sample of 20 people is selected, find μ .
0.0/ 1.0 Points
Feedback:
20*.08
Question 3 of 20
If random variable X has a binomial distribution with n =7 and P(success) = p =0.6, find the
probability that X is at least 6. (That is, find P(X ≥

6/21/2020 APUS CLE : MATH302 D006 Spr 20 : Tests & Quizzes
1.0/ 1.0 Points
Feedback:
P(x = 1 - P(x , in Excel
=1-BINOM.DIST(5,7,0.6,TRUE)
Question 4 of 20
Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find the P(X
2/9
1.0/ 1.0 Points
Answer Key: 3.1875
Feedback:
25*.85*.15
Part 2 of 6 - Contingency Tables 1.0/ 1.0 Points
1.0/ 1.0 Points
Answer Key: 0.1728|.1728
Feedback:
In Excel,
=BINOM.DIST(3,14,0.13,FALSE)
Question 5 of 20
Suppose a random variable, x, arises from a binomial experiment. If n = 25, and p = 0.85, find the