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probability that a randomly selected elementary school teacher from a city is a female is 0,68, holds a second job is 0.42, and is a female and holds a second job is 0.29. Find the probability that an elementary school teacher selected at random from this city is a female or holds a second job?

probability that a randomly selected elementary school teacher from a city is a female is 0,68, holds a second job is 0.42, and is a female and holds a second job is 0.29. Find the probability that an elementary school teacher selected at random from this city is a female or holds a second job?

A First Course in Probability (10th Edition)
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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Please solve asap. Easy problem. 1st exercise.
B)=120/400 Hence the relation P(AUB) = P(A) + P(B) – P(A^ B) implies that 300 P(B) = P(AUB)+ P(AC B) – P(A) 120 160 = 0.65. 400 400 400 Exercises 1. The probability that a randomly selected elementary school teacher from a city is a female is 0.68, holds a second job is 0.42, and is a female and holds a second job is 0.29. Find the probability that an elementary school teacher selected at random from this city is a female or holds a second job? 2. It was estimated that 35% of all students were seriously concerned about emplóyment prospects, 20% were seriously 339
Transcribed Image Text:B)=120/400 Hence the relation P(AUB) = P(A) + P(B) – P(A^ B) implies that 300 P(B) = P(AUB)+ P(AC B) – P(A) 120 160 = 0.65. 400 400 400 Exercises 1. The probability that a randomly selected elementary school teacher from a city is a female is 0.68, holds a second job is 0.42, and is a female and holds a second job is 0.29. Find the probability that an elementary school teacher selected at random from this city is a female or holds a second job? 2. It was estimated that 35% of all students were seriously concerned about emplóyment prospects, 20% were seriously 339
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