Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

plz help On a certain test, the mean is 95 with a standard deviation of 10. The results come very close to fitting a normal

plz help

image text in transcribed
On a certain test, the mean is 95 with a standard deviation of 10. The results come very close to fitting a normal curve. Suppose this test is given to a very large group of people. Use the empirical rule to find the percentage of people whose scores are between 65 and 125. What is the percentage of people whose test scores are between 65 and 125? % (Type an integer or a decimal.) Suppose 110 geology students measure the mass of an ore sample. Due to human error and limitations in the reliability of the balance, not all the readings are equal. The results are found to closely approximate a normal curve, with mean 83 g and standard deviation 3 g. Use the symmetry of the normal curve and the empirical rule as needed to estimate the number of students reporting readings between 80 g and 86 g. The number of students reporting readings between 80 g and 86 g is (Round to the nearest whole number as needed.)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access with AI-Powered 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

Cost Accounting

Authors: William K. Carter

14th edition

759338094, 978-0759338098

Students also viewed these Mathematics questions

Question

Why do you want to be a clinical psychologist?

Answered: 1 week ago