Hugo averages42words per minute on a typing test with a standard deviation of9.5words per minute. Suppose Hugo's words per minute on a typing test are normally distributed. LetX=the number of words per minute on a typing test. Then,XN(42,9.5).

Suppose Hugo types72words per minute in a typing test on Wednesday. Thez-score whenx=72is ________. Thisz-score tells you thatx=72is ________ standard deviations to the ________ (right/left) of the mean, ________.

Correctly fill in the blanks in the statement above.

Select the correct answer below:

Suppose Hugo types72words per minute in a typing test on Wednesday. Thez-score whenx=72is2.4. Thisz-score tells you thatx=72is2.4standard deviations to theleftof the mean,42.

Suppose Hugo types72words per minute in a typing test on Wednesday. Thez-score whenx=72is3.158. Thisz-score tells you thatx=72is3.158standard deviations to therightof the mean,42.

Suppose Hugo types72words per minute in a typing test on Wednesday. Thez-score whenx=72is2.4. Thisz-score tells you thatx=72is2.4standard deviations to therightof the mean,42.

Suppose Hugo types72words per minute in a typing test on Wednesday. Thez-score whenx=72is3.158. Thisz-score tells you thatx=72is3.158standard deviations to theleftof the mean,42.