The combined SAT scores for the students at a local high school are normally distributed with a mean of 1485 and a standard deviation of 298.

Question

The combined SAT scores for the students at a local high school are normally distributed with a mean of 1485 and a standard deviation of 298. The local college includes a minimum score of 1574 in its admission requirements.

Answer 1

z= (1574-1485)/298= 89/298= about .2987 standard deviations above the mean

use z tables or a z calculator to find the percentage above or below 1574

61.74% have lower scores than 1574