1. A group of students can be divided into 3 types so that each student is in eactly one ofthe types. 10% of the students are in the first type, 30% of the students are in the secondtype, and the remaining students are in the third type. 90% of the students in the firsttype know formula B, 25% of the students in the second type know formula B, and 12%of the students in the third type know formula B. A student is chosen at random fromthis group. What is the probability this student is in the first type given that this studentknows formula B?

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Description: 1. A group of students can be divided into 3 types so that each student is in eactly one ofthe types. 10% of the students are in the first type, 30% of the students are in the secondtype, and the remaining students are in the third type. 90% of the

Given information, P(first type)=10% P(second type)=30% P(third type)=60% P(formula B| first…

Math

Probability

. A group of students can be divided into 3 types so that each student is in eactly one of he types. 10% of the students are in the first type, 30% of the students are in the second ype, and the remaining students are in the third type. 90% of the students in the first ype know formula B, 25% of the students in the second type know formula B, and 12% f the students in the third type know formula B. A student is chosen at random from his group. What is the probability this student is in the first type given that this student

. A group of students can be divided into 3 types so that each student is in eactly one of he types. 10% of the students are in the first type, 30% of the students are in the second ype, and the remaining students are in the third type. 90% of the students in the first ype know formula B, 25% of the students in the second type know formula B, and 12% f the students in the third type know formula B. A student is chosen at random from his group. What is the probability this student is in the first type given that this student

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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1. A group of students can be divided into 3 types so that each student is in eactly one of
the types. 10% of the students are in the first type, 30% of the students are in the second
type, and the remaining students are in the third type. 90% of the students in the first
type know formula B, 25% of the students in the second type know formula B, and 12%
of the students in the third type know formula B. A student is chosen at random from
this group. What is the probability this student is in the first type given that this student
knows formula B?

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