here are 500 seniors at a certain high school, of which 230 are males. It is known that 30% of the males wear contact lenses and 40% of the females wear contact lenses. If a student is selected at random from the senior class, what is the probability that the student is: a) a female who wears contact lenses? b) a male who doesn’t wear contact lenses?
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.
There are 500 seniors at a certain high school, of which 230 are males. It is known that 30% of the males wear contact lenses and 40% of the females wear contact lenses. If a student is selected at random from the senior class, what is the probability that the student is:
a) a female who wears contact lenses?
b) a male who doesn’t wear contact lenses?
Step by step
Solved in 2 steps with 1 images
