2.2% 2.2% 34.1% 34.1% 0.1% 0.1% 13.6% 13.6% μ-3σ μ-2σ μ-Ισ µ+lo ut20 µ+3o Frequency

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 50E
icon
Related questions
icon
Concept explainers
Question
Suppose that, for a certain exam, a teacher grades on a curve. It is known that the mean is 55 and the standard deviation is 5. There are 35 students in the class. 1.) What score would be necessary to obtain an A? 2.) If an exam is selected at random, what is the probability that it will be a failing exam?
2.2%
2.2%
34.1% 34.1%
0.1%
0.1%
13.6%
13.6%
u-30 u-20 u-lo
u+lo µ+2o pu+3o
Frequency
Transcribed Image Text:2.2% 2.2% 34.1% 34.1% 0.1% 0.1% 13.6% 13.6% u-30 u-20 u-lo u+lo µ+2o pu+3o Frequency
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Continuous Probability Distribution
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Functions and Change: A Modeling Approach to Coll…
Functions and Change: A Modeling Approach to Coll…
Algebra
ISBN:
9781337111348
Author:
Bruce Crauder, Benny Evans, Alan Noell
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning