shipwreckent shipwreckent

22-06-2017
Mathematics

contestada

Betty scored 56 on a statistics test that had a mean of 65 and a standard deviation of 5. What was the Z- score on the test?

Respuesta :

mathmate mathmate

27-06-2017

Z-score for a variable X is calculated using
Z(x)=(x-mean)/standard deviation.
Here
x=56
mean=65
standard deviation=5
so
Z(65)=(65-56)/5=9/5=1.8

Answer Link

Otras preguntas

If I had 3 cookies and someone took 1 how many do I have left

what is 11.4 divided by 19

The point A(-3,5) and the point B(1,-15) lie on the line L. Find the equation of the line L.

When comparing the digestive and urinary system, we can conclude that they both __________. A. are responsible for regulating the amount of salt in the body B.

what kind of data would you need to collect to carry out this experiment to see if corn plant grow faster then peas plants

list three effects of slavery in africa

Alexandra is two years older than brad. cecilia is three years younger than alexandra. all three ages added together gives a total of 37 years. how old is each

What is the solution |2x+1|=3x+4

Pablo Picasso es un blank muy famoso. A) arquitecto B) pintor C) visitante

You can spend up to $35 on a shopping trip. a. You want to buy a shirt that costs $14. Write and solve an inequality that represents the amount of money you w