Question

1.

A)If your score has a percentile rank of 60, then 60% of the scores are higher than your score.

True

False

B) In a normal distribution about 38.3% of the scores are no more than one half standard deviation away from the mean.

True

False

C) In a normal distribution with mean 500 and standard deviation 100, about 15.87% of the scores will be lower than 400.

True

False

D) In a normal distribution with mean 50 and standard deviation 10, about 15.87% of the scores will be lower than 60.

True

False

E) If your score has a percentile rank of 60, then 40% of the scores are higher than your score.

True

False

Answer 1

A. False. If your score has a percentile rank of 60, then 40% of the scores are higher than your score.

B. True. In a normal distribution, about 38.3% of the scores are no more than one half standard deviation away from the mean.

C. True. In a normal distribution of the mentioned parameters, about 15.87% of the scores will be lower than 400.

D. False. In a normal distribution of the mentioned parameters, about 84.13% of the scores will be lower than 60.

E. True. If your score has a percentile rank of 60, then 40% of the scores are higher than your score.