A math teacher gave her class two tests. 70% of the class passed both tests and 80% of the class passed the first test. What percent of those who passed the first test aisopassed the second test?70%75.5%87.5%None of these choices are correct.All PreviousRackNext

Given, Student passed in first test , Let it be A = 80% . Student passed in second test , Let it be…

Answered: A math teacher gave her class two…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 1CGP

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Pet Owners According to the Humane Society, in 2015, 65% of U.S. households owned at least one pet, and 42% of households who did own pets owned at least two. The U.S. Census Bureau tells us that there were 117 million households in 2015. How many households owned at least two pets? Report your answer in millions rounded to two places.
Use the following scenario for the exercises that follow: In the game of Keno, a player starts by selecting 20 numbers from the numbers 1 to 80. After the player makes his selections, 20 winning numbers are randomly selected from numbers 1 to 80. A win occurs if the player has correctly selected 3,4, or 5 of the 20 winning numbers. (Round all answers to the nearest hundredth of a percent.) 53. What is the percent chance that a player selects all 5 winning numbers?
Use the following scenario for the exercises that follow: In the game of Keno, a player starts by selecting 20 numbers from the numbers 1 to 80. After the player makes his selections, 20 winning numbers are randomly selected from numbers 1 to 80. A win occurs if the player has correctly selected 3,4, or 5 of the 20 winning numbers. (Round all answers to the nearest hundredth of a percent.) 52. What is the percent chance that a player selects exactly 4 winning numbers?

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A math teacher gave her class two tests. 70% of the class passed both tests and 80% of the class passed the first test. What percent of those who passed the first test also passed the second test? 70% 75.5% 87.5% None of these choices are correct.