# Need help on a AP STATS question!?

The distribution of the time it takes for different people to solve a certain crossword puzzle is strongly skewed to the right with a mean of 30 minutes and a standard deviation of 15 minutes. The distribution of z-scores for those times is:

(A) Normally distributed with mean 30 and SD 15.

(B) Skewed to the right with mean 30 and SD 15.

(C) Normally distributed with mean 0 and SD 1.

(D) Skewed to the right with mean 0 and SD 1.

(e) Skewed to the right, but the mean and standard deviation cannot be determined without more information

Please tell me how you got your answers, thanks in advance!

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Thanks! One more question though, how is it normally distributed?