Students are usually tested on various subjects to determine the level of intelligence. In an intelligence examination administered to 2,000 students of the MBA programmes, the average score recorded by the lecturer was 42 and deviation of the scores from their mean was 24. Assuming that the distribution of scores is normal, find: The number of students whose score exceeds 50 The number of students whose score is between 30 and 54 inclusive. The score corresponding to the standardized normal value of 2 What is the probability of a score which is less than 70? How many student would have a score of at least 66?
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.
Students are usually tested on various subjects to determine the level of intelligence. In an intelligence examination administered to 2,000 students of the MBA programmes, the average score recorded by the lecturer was 42 and deviation of the scores from their mean was 24. Assuming that the distribution of scores is normal, find:
- The number of students whose score exceeds 50
- The number of students whose score is between 30 and 54 inclusive.
- The score corresponding to the standardized normal value of 2
- What is the
probability of a score which is less than 70? - How many student would have a score of at least 66?
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