. A large clinic knows from experience that around 10% of patients fail to show up for routine blood test appointments. Suppose that 200 appointments are made each week (hint, n=?, p=?). What is the probability that up to 25 patients do not turn up each week?
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.
i. A large clinic knows from experience that around 10% of patients fail to show up for routine blood test appointments. Suppose that 200 appointments are made each week (hint, n=?, p=?). What is the probability that up to 25 patients do not turn up each week?
ii. A lecturer wants to take a sample of 40 students from a class of 160 to complete a survey on the module. In the past they have tried three ways: asking the first 40 students who turn up to lectures, emailing a survey to the entire class and hope 40 respond or ask each student in lecture to toss a coin twice and select the students who get two heads. Which approach would you prefer and why, or does it matter?
Step by step
Solved in 2 steps
