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

negative 5 x squared plus 3 xy minus 6 y squared plus 4 x squared minus xy plus 2 y squared

A climax community will include which of the following? Question 3 options: A: trees B: animals C: bushes D: grass E: all of the above

what’s the equation to find its final tempature T_f ?

The the best units to use for Molar Mass would be: kg/mol. True False

what is the measure of an interior angle of a regular polygon with 90 sides

In "Delfino II: Diez in the Desert," Diez tells people in his group not to wear bright clothing because ______

When magnesium is burnt in air, a powdery ash X is formed, X on dissolving in water forms y.i)what are X and Y?

A climax community will include which of the following? Question 3 options: A: trees B: animals C: bushes D: grass E: all of the above

Last year Marsha helped 5 different sellers sell their home. The sale prices of these 5 homes were as shown in the table below. If Marsha made. 3% commission on

How does it support Wiesel’s main idea about indifference ?