A teacher says that the top 20% of the class received an A on the last test. The scores were normally distributed with mean 70 and standard deviation 19.Find the minimum score required to get an AO points Round to the whole numberNEGATIVE z ScoresStandard Normal (z) Distribution Cumulative Area from the LEFTand lowere00001 traas below4400000000000003330005000400040004000400040004320007.00000002000000.001000000000013001300130012001200110011001000100010.0018001700100015001401400240023002002200210021002027.0034003200100000270000300440040.0000370043005720004700450041004001200425-24.007500tD1070132012901201220110DI0113-22

Answered: Image /qna-images/answer/c10fc0f3-8ae2-49ef-898a-fabdea629441.jpg

A teacher says that the top 20% of the class received an A on the last test. The scores were normaly distributed with mean 70 and standard deviation 19. Find the minimum score required to get an A. Opoints Round to the whole number

A teacher says that the top 20% of the class received an A on the last test. The scores were normaly distributed with mean 70 and standard deviation 19. Find the minimum score required to get an A. Opoints Round to the whole number

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Compound Probability

Compound probability can be defined as the probability of the two events which are independent. It can be defined as the multiplication of the probability of two events that are not dependent.

Tree diagram

Probability theory is a branch of mathematics that deals with the subject of probability. Although there are many different concepts of probability, probability theory expresses the definition mathematically through a series of axioms. Usually, these axioms express probability in terms of a probability space, which assigns a measure with values ranging from 0 to 1 to a set of outcomes known as the sample space. An event is a subset of these outcomes that is described.

Conditional Probability

By definition, the term probability is expressed as a part of mathematics where the chance of an event that may either occur or not is evaluated and expressed in numerical terms. The range of the value within which probability can be expressed is between 0 and 1. The higher the chance of an event occurring, the closer is its value to be 1. If the probability of an event is 1, it means that the event will happen under all considered circumstances. Similarly, if the probability is exactly 0, then no matter the situation, the event will never occur.

Question

A teacher says that the top 20% of the class received an A on the last test. The scores were normally distributed with mean 70 and standard deviation 19.
Find the minimum score required to get an A
O points Round to the whole number
NEGATIVE z Scores
Standard Normal (z) Distribution Cumulative Area from the LEFT
and lower
e00001 traas below
44
0000
000
000
0003
33
0005
0004
0004
0004
0004
0004
0004
32
0007
.000
0000
2000
000
.0010
0000
000
0013
0013
0013
0012
0012
0011
0011
0010
0010
0010
.0018
0017
0010
0015
0014
014
0024
0023
002
0022
0021
0021
0020
27
.0034
0032
001
000
0027
00
003
0044
0040
.00
0037
0043
0057
20
0047
0045
0041
004
0012
004
25
-24
.0075
00t
D107
0132
0129
012
0122
0110
DI
0113
-22

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