A survey of freshman calculus students at a certain university showed the following graphics calculator use: 21 use TI 45 use Casio 24 use HP uses none of the above 13 use TI and Casio 14 use HP and TI 15 use Casio and HP S use all three of the above 9. How many students were surveyed? 10. How many of the Casio users do NOT use TI? 11. How many students use at least one calculator in addition to Casio? -
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.
In Problems 29-33, a survey of freshman calculus students at a certain university showed the following graphics calculator use: 21 use TI 45 use Casio 24 use HP 1 uses none of the above 13 use TI and Casio 14 use HP and TI 15 use Casio and HP 8 use all three of the above 29. How many students were surveyed? 30. How many of the Casio users do NOT use TI? 31. How many students use at least one calculator besides Casio? 32. How many students use at most two of the calculators?
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