1) Rework problem 11 from section 4.1 of your text involving the flipping of a weighted coin. Assume that the coin is weighted so that a tail is 7 times as likely as a head. The coin is flipped 6 times. What is the probability that both heads and tails occur? (2) Rework problem 15 from section 4.1 of your text involving a true-false test. Assume that 24 questions are answered by guessing. What is the probability of exactly 17 correct answers?
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.
(1) Rework problem 11 from section 4.1 of your text involving the flipping of a weighted coin. Assume that the coin is weighted so that a tail is 7 times as likely as a head. The coin is flipped 6 times.
What is the probability that both heads and tails occur?
(2) Rework problem 15 from section 4.1 of your text involving a true-false test. Assume that 24 questions are answered by guessing.
What is the probability of exactly 17 correct answers?
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