A marksman’s chance of hitting a target with each of his shots is 60 percent. If he fires 30 shots, what is the probability of his hitting the target a. at least 20 times? b. less than 10 times? c. between 15 and 20 times inclusive?
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.
A marksman’s chance of hitting a target with each of his shots is 60 percent. If he fires 30 shots, what is the probability of his hitting the target
a. at least 20 times?
b. less than 10 times?
c. between 15 and 20 times inclusive?
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