Suppose that people are equally likely to have been born on any of the 7 days of the week. You meet two new friends independently, and ask each of them on what day of the week they were born. (Enter your answers as fractions.) (a) What is the probability that the first friend was born on a Friday? 1/7 (b) What is the probability that both friends were born on a Friday? (c) What is the probability that both friends were born on the same day of the week?
Suppose that people are equally likely to have been born on any of the 7 days of the week. You meet two new friends independently, and ask each of them on what day of the week they were born. (Enter your answers as fractions.) (a) What is the probability that the first friend was born on a Friday? 1/7 (b) What is the probability that both friends were born on a Friday? (c) What is the probability that both friends were born on the same day of the week?
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 42E
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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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Suppose that people are equally likely to have been born on any of the 7 days of the week. You meet two new friends independently, and ask each of them on what day of the week they were born. (Enter your answers as fractions.)
(a)
What is the probability that the first friend was born on a Friday?
1/7
(b)
What is the probability that both friends were born on a Friday?
(c)
What is the probability that both friends were born on the same day of the week?
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