Use normal approximation (without continuity correction) to estimate the probability of passing a true/false test of 50 questions if the minimum passing grade is 60% and all responses are random guesses.
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.
Use normal approximation (without continuity correction) to estimate the
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