14. The standard normal distribution a. is a special case of the normal distribu

Question

14. The standard normal distribution a. is a special case of the normal distribution b. has a mean of 0 and a standard deviation of 1 c. measures distance from the mean in units of the standard deviation d. all of the above 15. A normal distribution has at least two peaks is symmetrical increases as X decreases a. b. c. d. is discrete 16. A z value a. can assume both positive and negative values b. can assume only negative values c. is always d. is found by (n) (p) 17. A standard normal distribution graphically represents a normal bell-shaped curve a. b. is symmetrical c. is asymptotic d. all of the above All of the following statements are true regarding the continuous probability distribution except a. a z-score is also referred to as the standard normal deviate or just the normal 18. deviate. b. a computed z-score for x values to the right of the mean is negative. the number of different normal distributions is unlimited. c. d. the total area under the normal wave is 100%, 19. How many normal distributions exist? a. b. 2 c. 3 d. a family 20. In the calculation of the z score, the value of any particular mea surement is deducted from the mean of the distribution and then divided by the the distribution. a. variance b. standard deviation c. median d. binomial probability of

Explanation / Answer

14 ) d is the correct answer.

15) b is correct.

16) a is correct.

17) d is correct.

18) b is incorrect.

19) d is correct.

20) b is correct.

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