he probability that a Santa Ana College student will have to take statistics is .27. Suppose that you selected 25 SAC students at random. Use this information to answer the following questions. d. What is the probability that between 4 and 9 students out of the 25 would have to take Statistics? Show your probability notation. You do not need to show your calculation. e. What is the mean and standard deviation for the distribution? Using this information, would it be unusual for 10 of the 25 students to have to take Statistics? Show your work.
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.
he probability that a Santa Ana College student will have to take statistics is .27. Suppose that
you selected 25 SAC students at random. Use this information to answer the following
questions.
d. What is the probability that between 4 and 9 students out of the 25 would have to take
Statistics? Show your probability notation. You do not need to show your calculation.
e. What is the mean and standard deviation for the distribution? Using this information,
would it be unusual for 10 of the 25 students to have to take Statistics? Show your
work.
Let us assume X= number of students who takes Statistics
n=number of trial = 25
p= probability of success= 0.27
So X follows a binomial distribution with n=25 and p=0.27
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