Find z0.755.A. 0.7734B. 0.69C. –0.69D. 0.2266

Accepted Solution

Answer:Option A is correct.0.7734.Step-by-step explanation:Definition:  z-score indicates that how many standard deviations an element is from the mean. It can be calculated from the following formula.[tex]z = \frac{X-\mu}{\sigma}[/tex]where;   z is the z-score,     X is the value of the element, [tex]\mu[/tex] is the mean, and σ is the standard deviation.To interprets z- score:if a z-score < 0, it  represents an element less than the mean. if a  z-score > 0, it represents an element greater than the mean. if  z-score = 0, it  represents an element equal to the mean. Given:  z < 0.755then, to find the value of z, look up the standardize normal distribution to the left of a z-score.we getz = 0.7734