allybreemany27 allybreemany27

29-05-2020
Mathematics

contestada

PLEASE HELP!
On a standardized exam, the scores are normally distributed with a mean of 155 and a standard deviation of 20. Find the z-score of a person who scored 145 on the exam.

Respuesta :

xplicifire xplicifire

29-05-2020

Answer:

-0.5

Step-by-step explanation:

z-score = (x- mean)/SD

(145-155)/20 = -10/20 = -0.5

Answer Link

Otras preguntas

¿Preparo los pasteles?

How not to be scared on stage

Who owned everything in Egypt? a. shah b. pharaoh c. people d. priests

Lipids are important to living things for all of the following reasons, EXCEPT that they are

When creating websites, a designer must take into account that all browsers do not present HTML code in the same manner. There are at least three solutions to t

what is greater 2/5 or 3/4

Write the number equal to 5 tens and 13 ones

The effects of tobacco use on society include high taxes and loss of life. Please select the best answer from the choices provided. T F

Can someone list the observable changes that indicate a physical change has occurred? Same for chemical change?

can beryllium be broken down by chemical change?

ACCESS MORE