If the mean of a normal distribution is negative

Reference no: EM1318098

1. Continuous random variable is uniformly distributed between a and b. The probability density function between a and b is

a. Zero
b. (a-b)
c. (b-a)
d. 1/(b-a)

2. If the mean of a normal distribution is negative,

a. the standard deviation must also be negative
b. the variance must also be negative
c. a mistake has been made in the computations, because the mean of a normal distribution cannot be negative
d. None of these alternatives is correct.

3. The highest points of a normal curve occurs at

a. One standard deviation to the right of the mean
b. two standard deviations to the right of the mean
c. approximately three standard deviations to the right of the mean
d. mean

Reference no: EM1318098

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