Scores on a dexterity test administered to a nation-wide pool of job applicants are approximately normally distributed with a mean of 80 and a standard deviation of 7. Consider the score of a randomly selected test-taker.

(a) The probability that a randomly selected test-taker will score higher than 73 is.

(b) The probability that a random selected test-taker will score between 77.2 and 97.29 is.

(c) Eighty-four and 61/100 percent (.8461 proportion) of test-takers will scoreor higher.