Q1:
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A binomial distribution has n = 10 and p = 0.6.
n is the number of trials and p is the probability of a success at each trial.
What is the mean of this distribution?
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A. 0.6
B. 0.4
C. 4
D. 6
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Answer 1:
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Q2:
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What is the standard deviation of the binomial distribution in question 1 (to 3 s.f.)?
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A. 2.16
B. 1.55
C. 0.6
D. 2.4
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Answer 2:
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Q3:
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If random samples of size 50 are taken from the distribution in question 1, what is the mean of the distribution of sample means?
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A. 0.6
B. 0.4
C. 4
D. 6
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Answer 3:
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Q4:
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If random samples of size 50 are taken from the distribution in question 1, what is the standard deviation of the distribution of sample means?
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A. 0.219
B. 0.031
C. 2.16
D. 1.55
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Answer 4:
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Q5:
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What is the probablity that the mean of a sample of size 50 is greater than 6.2? |
A. 0.9132
B. 0.3194
C. 0.1806
D. 0.7326
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Answer 5:
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