Question

The proportion of observations from a standard Normal distribution with values larger than $-0.75$is

(a)$0.2266$. (c) $0.7734$. (e) none of these

(b)$0.7422$. (d) $0.8023$.

Short answer

Correct answer is

(c) $0.7734$

Step-by-step solution

 Given information 

Standard Normal distribution with values larger than $-0.75$.

We have to find the proportion of observations.

Step 2:  Explanation 

Find the probability corresponding to $-0.75$using table A:

$P=0.2266$

By comparing $0.2266$of all observations, we can see that it is less than $-0.75.$

The total proportion being $1$, this proportion is larger than $-0.75$, since $1-0.2266=0.7734$of all observations.