Consider the following scores. (i) a score of 40 from a distribution with mean 5
ID: 3182675 • Letter: C
Question
Consider the following scores.
(i) a score of 40 from a distribution with mean 50 and standard deviation 10
(ii) a score of 45 from a distribution with mean 50 and standard deviation 5 How do the two scores compare relative to their respective distributions?
a)They are both 2 standard deviations below their respective means.
b)They are both 1 standard deviation above their respective means.
c)They are both 1 standard deviation below their respective means.
d) The score of 40 is 2 standard deviations below its mean, while the score of 45 is only 1 standard deviation below its mean.
Explanation / Answer
Ans: c)They are both 1 standard deviation below their respective means.
(For (i), mu-1sigma=50-10=40, a given score
For(ii), mu-1sigma=50-5=45, a given score)