Find z-scores for a Given Area
-Find the $z$-score that is less than the mean and for which $70 \%$ of the distribution's area lies to its right.
A) $- 0.53$
B) $- 0.98$
C) $- 0.81$
D) $- 0.47$

Question

Quizplus · Accepted Answer

A z-score that has 70% of the distribution's area to its right means that 30% of the area is to its left. Looking up 0.30 in a standard normal distribution table or using a calculator to find the z-score for the 30th percentile gives a value close to -0.53.

Find Z-Scores for a Given Area -Find The zzz -Score That Is Less Than the Mean and for Which

Find Z-Scores for a Given Area
-Find The $z$ -Score That Is Less Than the Mean and for Which