Question
Last semester, the mean score of the midterm exam for Dr. Ngo's Statistics course is 65 and the standard deviation is 8.2. Mary spent a
Last semester, the mean score of the midterm exam for Dr. Ngo's Statistics course is 65 and the standard deviation is 8.2. Mary spent a lot of time studying and received a score of 79. Lisa didn't spend a lot of time studying but received a score of 71 in Dr. Ngo's class.
1) John is taking Dr. Ngo's class this semester. He plans to spend a few hours studying for the test. What is the probability of John receiving a score that is between Mary's and Lisa's scores ?
2) What is the probability of John receiving a score that is below Lisa's score ?
3) What is the probability of John receiving a score that is above Mary's score ?
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
Combinatorics And Graph Theory
Authors: John M Harris, Jeffry L Hirst, Michael J Mossinghoff
2nd Edition
0387797114, 9780387797113
