A student randomly guesses at four multiple-choice questions. Each question has three possible choices. The random variable X denotes the number of correct answers. What is the expected value of X? Question 29 options: a) 1/3 b) 1.3333 c) 1 d) 3/4 e) 4
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.
A student randomly guesses at four multiple-choice questions. Each question has three possible choices. The random variable X denotes the number of correct answers.
What is the
Question 29 options:
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
