Question

The average monthly salary for first here teachers is 21,945 if the distribution is approximately normal with a standard deviation of 3250 how much will a teacher earn in a month if his salary has a z score of 1.15

Answer 1

We have given that,

$\mu = 21945$

$\sigma = 3250$

$z = 1.15$

We know that,

$z = \dfrac{x-\mu}{\sigma}$

$1.15 = \dfrac{x-21945}{3250}$

$1.15 \times 3250 = x- 21945$

$x = 25682.5$