3. If you are simply guessing on a true/false test with 36 questions, what is the probability that you will get 20 or more correct? a. 0.1587 b. 0.2033 C. 0.2514 d. 0.3085

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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Question
Answer number 3
1. What is the standard deviation for a binomial distribution with p=q= and
n = 36?
а. 3
b. 9
C. 12
d. 18
2. For a binomial distribution with p =
i, what is the probability that A will occur
%3D
more than 18 times in a series of 48 trials?
а. 0.2514
b. 0.0336
C. 0.0228
d. 0.0150
3. If you are simply guessing on a true/false test with 36 questions, what is the
probability that
you
will
get 20 or more correct?
а. 0.1587
b. 0.2033
с. 0.2514
d. 0.3085
Transcribed Image Text:1. What is the standard deviation for a binomial distribution with p=q= and n = 36? а. 3 b. 9 C. 12 d. 18 2. For a binomial distribution with p = i, what is the probability that A will occur %3D more than 18 times in a series of 48 trials? а. 0.2514 b. 0.0336 C. 0.0228 d. 0.0150 3. If you are simply guessing on a true/false test with 36 questions, what is the probability that you will get 20 or more correct? а. 0.1587 b. 0.2033 с. 0.2514 d. 0.3085
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ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
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