There are n questions for a given chapter. 6 of the questions are DOK 3, and the rest are DOK 2 questions. The teacher chose at random one of the questions to solve. Again, the teacher chose one different question at random to solve. The probability that both questions are DOK 3 is 1/3. How many questions are there in total?
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.
There are n questions for a given chapter.
6 of the questions are DOK 3, and the rest are DOK 2 questions.
The teacher chose at random one of the questions to solve.
Again, the teacher chose one different question at random to solve.
The
How many questions are there in total?
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