Every morning a math instructor picks out two socks completely at random from his closet; there’s only a 40% chance they match. If they don’t match there is a 100% chance his students will laugh at him, while if his socks do match there is only a 20% chance of his students laughing at him. On a given day, what is the probability that his students laugh at him? (A) 0.68 (B) 1.2 (C) 0.2 (D) 0.08 (E) 1 (F) 06 (G) 04 (H) 9
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.
Every morning a math instructor picks out two socks completely at random from his closet; there’s only a 40% chance they match. If they don’t match there is a 100% chance his students will laugh at him, while if his socks do match there is only a 20% chance of his students laughing at him. On a given day, what is the
his students laugh at him?
(A) 0.68 (B) 1.2 (C) 0.2 (D) 0.08
(E) 1 (F) 06 (G) 04 (H) 9
Step by step
Solved in 2 steps
