Question

What is the probability that a randomly selected value from the distribution will be less than 2.1 standard deviation from the mean

Answer 1

0.9821

Explanation:

Probability that a randomly selected value will be less than 2.1 deviations from the mean ; this means the Zscore = 2.1

Hence, using :

P(Z < 2.1) = 0.9821 (standard normal table

= 0.9821