If a seed is planted, it has a 90% chance of growing into a healthy plant. If 7 seeds are planted, what is the probability that exactly 2 don't grow?
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.
The Binomial probability distribution is:
In the formula, n denotes the number of trails, p denotes probability of success, and x denotes the number of success.
Let x be the number of seeds don't grow which follows binomial distribution with sample size 7, and probability of success 10 %. That is, .
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