et X represent the number of visits to the GP over the last 12 months. From past records of patients, the GP has constructed the following probability distribution for X. X 0 1 2 3 7 P(X=x) 0.5 0.2 0.1 0.1 0.1 What is the expected number of visits given that a patient has had at least one visit? (correct to one decimal place)
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.
Let X represent the number of visits to the GP over the last 12 months. From past records of patients, the GP has constructed the following probability distribution for X.
|
X |
0 |
1 |
2 |
3 |
7 |
|
P(X=x) |
0.5 |
0.2 |
0.1 |
0.1 |
0.1 |
What is the expected number of visits given that a patient has had at least one visit? (correct to one decimal place)
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