Question
Suppose that the national average for the math portion of the College Board's SAT is 515. The College Board periodically rescales the test scores such
Suppose that the national average for the math portion of the College Board's SAT is 515. The College Board periodically rescales the test scores such that the standard deviation is approximately 100. Answer the following questions using a bell-shaped distribution and the empirical rule for the math test scores.
If required, round your answers to two decimal places. If your answer is negative use "minus sign".
(a)What percentage of students have an SAT math score greater than 615?%
(b)What percentage of students have an SAT math score greater than 715?%
(c)What percentage of students have an SAT math score between 415 and 515?%
(d)What is the z-score for student with an SAT math score of 620?
(e)What is the z-score for a student with an SAT math score of 405?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
Precalculus Enhanced With Graphing Utilities (Subscription)
Authors: Michael, Michael Sullivan III, Michael III Sullivan, III Sullivan
6th Edition
0321849108, 9780321849106
