Question

Find z0.755.

Answer 1

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.

$z = \frac{X-\mu}{\sigma}$

where;  

z is the z-score,    

X is the value of the element,

$\mu$ 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 < 0.755

then,

to find the value of z, look up the standardize normal distribution to the left of a z-score.

we get

z = 0.7734

Answer 2

Answer:

answer is -0.69

Step-by-step explanation:

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