Question

A highly selective boarding school will only admit students who place at least 2 standard deviations above the mean on a standardized test that has a mean of 200 and a standard deviation of 24. What is the minimum score that an applicant must make on the test to be accepted? The minimum score that an applicant must make on the test to be accepted is

Answer 1

#1) Given : mean ( µ ) = 200 and standard deviation (σ) = 24

We are given that school will only admit students who place at least 2 sd above the mean on test.

So Minimum score = µ + (2*σ) = 200+(2*24 )

Minimum score = 248

#2)

%*Grades % 0.2 Grades 100 20 93 9.3 Attendance Quizzes Exams Final Total 0.1 0.45 0.25 1 82 85 36.9 21.25 87.45

Marissa's course average is 87.45%

#3)

A. The data points have a linear relationship because they lie mainly in a straight line.

As explanatory variable increases , Response variable decreases , therefore,

B. The two variables have a negative association.