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

Does an owl have a backbone?

What is the creepiest sounding scale? What scale would u use for writing creepy music in other words

What is 25% of $500.00? I think the answer is $475.00 Can someone verify if twenty five percent of 500.00 is $475.00

find the sum. write each mixed number in simplest form 4 7/8 + 5 1/4

The ______ was established in 1943 to assist in the transition from a peacetime to a wartime economy ?

What were the contributions of the Harappan civilization?

What all the multiples of 81?

What all the multiples of 81?

The inner and outer Radii of a cylindrical pipe are 5 cm and 4 cm respectively. find the area of cross section of the pipe.

A blue rope is 3 times the length as a red rope. A green rope is 5 times as log as the blue rope of the total length of all 3 ropes equals 508.25m what is the l