patients receiving artificial knees often experience pain after surgery. The pain is measured on a subjective scale with possible values of 1 (low) to 5 (high). Let X be the pain score for a randomly selected patient. The following table gives the probability distribution for the random variable X. X 1 2 3 4 5 P(X) 0.1 0.2 0.3 0.3 0.1 What is the probability that a randomly chosen patient has a pain level of at most three? Include the leading zero in your answer.
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.
patients receiving artificial knees often experience pain after surgery. The pain is measured on a subjective scale with possible values of 1 (low) to 5 (high). Let X be the pain score for a randomly selected patient. The following table gives the
| X | 1 | 2 | 3 | 4 | 5 |
| P(X) | 0.1 | 0.2 | 0.3 | 0.3 | 0.1 |
What is the probability that a randomly chosen patient has a pain level of at most three? Include the leading zero in your answer.
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