10. Imagine that each of the following pairs of means and standard deviations was 10.

determined from scores on a 50-item test. With only this information, describe the probable shape of each distribution. (Assume a normal distribution unless you believe the information presented suggests otherwise.)

(a) X 29 S 3

(b) X 29 S 4

(c) X 48 S 4

(d) X 50 S 0