10 years ago, high levels of lead in blood put 83% of children at risk. Now only 8% of children are at risk. In a random sample of 214 children taken 10 years ago, what is the probability that 50 or more were at risk for high levels of lead in their blood.
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.
10 years ago, high levels of lead in blood put 83% of children at risk. Now only 8% of children are at risk. In a random sample of 214 children taken 10 years ago, what is the
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