40% of the students taking a Statistics exam were female, of which 90% passed the exam. The rest of the students were male, of which 85% passed the exam. What percentage of students passed the Statistics exam? A randomly selected paper was found to have a passing score. What is the probability that the student was a girl?
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.
19) 40% of the students taking a Statistics exam were female, of which 90% passed the exam. The rest of the students were male, of which 85% passed the exam.
- What percentage of students passed the Statistics exam?
- A randomly selected paper was found to have a passing score. What is the probability that the student was a girl?
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