Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

2. A test has two portions: verbal and math. The scores for each portion are positively correlated with a correlation coefficient of 0.55. A scatter

image text in transcribed
image text in transcribed
2. A test has two portions: verbal and math. The scores for each portion are positively correlated with a correlation coefficient of 0.55. A scatter diagram of the scores is football shaped. Scores on the verbal portion have an average of 550 points and an SD of 100 points. Scores on the math portion have an average of 525 points and an SD of 120 points. (a) One of the students scores 650 on the verbal portion and 645 on the math portion. Is her math score less than greaterthan or equal to (circle one) the average math score of all students who got the same verbal score she did? Justify your choice in terms of where these values fall relative to the SD line and regression line. (b) Approximately what percentage of all students score above 600 points on the math portion of the exam? (c) Approximately what percentage of all students who score 600 points on the verbal portion score above 600 points on the math portion

Step by Step Solution

There are 3 Steps involved in it

Step: 1

Given Information Two portions of the test Verbal and Math Verbal Scores Average mean 550 points Standard Deviation SD 100 points Math Scores Average mean 525 points Standard Deviation SD 120 points C... blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Elementary Number Theory

Authors: James K Strayer

1st Edition

1478618507, 9781478618508

More Books

Students also viewed these Mathematics questions