In a housing area, 20 residents were chosen randomly and asked whether they own Netflix account. It is found that 40% of them own Netflix account. Find the probability that: 1)at most 9 residents own Netflix account. 2) exactly 8 residents own Netflix account. 3) more than 10 residents own Netflix account. 4)exactly 6 residents do not own Netflix account.
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.
In a housing area, 20 residents were chosen randomly and asked whether they own Netflix
account. It is found that 40% of them own Netflix account.
Find the probability that:
1)at most 9 residents own Netflix account.
2) exactly 8 residents own Netflix account.
3) more than 10 residents own Netflix account.
4)exactly 6 residents do not own Netflix account.
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