971. Find f(2) in normal distribution if mean is 0 and variance is 1.
A. 0.1468
B. 0.1568
C. 0.1668
D. 0.1768

972. Find the mean of tossing 8 coins.
A. 2
B. 4
C. 8
D. 1

973. Mean and variance of Poisson’s distribution is the same.
A. True
B. False

974. What is the arithmetic mean of the data set: 4, 5, 0, 10, 8, and 3?
A. 4
B. 5
C. 6
D. 7

975. Which of the following cannot be the probability of an event?
A. 0.0
B. 0.3
C. 0.9
D. 1.2

976. If a random variable X has a normal distribution, then eX has a/an _____ distribution.
A. lognormal
B. exponential
C. Poisson
D. binomial

977. What is the geometric mean of: 1, 2, 8, and 16?
A. 4
B. 5
C. 6
D. 7

978. Which test is applied to Analysis of Variance (ANOVA)?
A. t test
B. z test
C. F test
D. χ2 test

979. The arithmetic mean of all possible outcomes is known as
A. expected value
B. critical value
C. variance
D. standard deviation

980. Which of the following cannot be the value of a correlation coefficient?
A. –1
B. –0.75
C. 0
D. 1.2

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