m2akayleebramarshm m2akayleebramarshm

01-06-2017
Mathematics

contestada

A college student takes a standardized test and scores a 163. if the mean is 155 and the standard deviation is 7, what is the student's percentile rank

Respuesta :

LammettHash LammettHash

01-06-2017

[tex]\mathbb P(X\le163)=\mathbb P\left(\dfrac{X-155}7\le\dfrac{163-155}7\right)\approx\mathbb P(Z\le1.1429)\approx0.8735[/tex]

which puts the student at about the 87th percentile.

Answer Link

Otras preguntas

You get $84 each month from your mom for your cell phone bill. The base fee each month is $27 plus $0.15 per minute. What is the maximum number of minutes you c

What lead to the declaration of independence and how was it written?

help please............

The cell is not hyperpolarized; however, repolarization is in progress, as the sodium channels are closing or closed, and many potassium channels have opened at

why does the federal reserve alter monetary policy? 1.to provide services to member banks 2.to lessen the effect of natural business cycles 3.to regulate the

What should be subtracted from 2a+8b+10 to get -3a+7b+16? With steps... take the number as 'A'

WILL MARK BRAINLIEST!! PLEASE HELP ASAP!!! FILL IN THE BLANKS!!

Frosted, sand-sized, quartz grains are indicative of sand transported by:

a mighty kids meal includes 3.2 ounces of applesauce. If a child eats two frozen meals each week, how many ounces of applesauce will they consume a year?

From some petroleum, you can get 30% of paraffin. How much petroleum do you need in order to get 18.75 tons of paraffin?