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

In addition to being necessary for respiration, _______ also provides UV radiation protection. A.) Oxygen B.) Carbon Dioxide C.) Hydrogen D.) Water

The area between bar lines

Beths summer vacation lasted 87 days . at the beginning of her vacation , she spent 3 weeks at summer camp , 5 days at her grandma house , 13 days visiting g

explain 2 ways to evaluate 15(90-3)

which U.S state resembles a right trapezoid?

In Congress, who has the right to unlimited debate and unlimited opportunity to offer amendments? a: the president b:senators c:the speaker of the house d:vice

if a rock is sitting in the dirt, the normal force from the ground and________are acting on it

how can you tell if 78 is divisible by 2 3 OR 6

the flight lasted for 12 seconds at an average speed of 10 feet per second. the ratio of the airplanes wingspan to the distance flown was 1:3 what was the wings

How do you find the phase shift of the trig function y=4sin(pieX+2)-5