Question

What percent of the total population is found between the mean and the z-score given? (Use the standard normal distribution table and enter your answer to two decimal places)

z=-0.50

Answer 1

Explanation:

Mean is 50 per cent

1/2 standard deviation below is z-score -.50 which corresponds to (using z-score table) 30.85 percent

50-30.85 = 19.15 percent