Q 2: In the first-month exam for engineering statistics for first-year students in the Department of Civil Engineering - Tikrit University, the number of students examined was 210, assuming that the probability density curve for degrees is subject to a normal distribution with a mean value of 61.3 and a standard deviation of 14.94 = 6. Calculate the following 1- The probability that any male or female student will succeed 2- The probability that a student's grade is less than 30 3- The probability that a student's grade is more than 70 4- The number of students who scored less than 50 5- The number of students whose scores were between 60 and 80 %3D

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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.