In an examination it is laid down that a student passes if he secures 30 per centor more marks. He is placed in the first, second or third division according as hesecures 60% or more marks, between 45% and 60% marks and marks between30% and 45% respectively. He gets distinction in case he secures 80% or moremarks. It is noticed from the result that 13% of the students failed in theexamination, whereas 8% of them obtained distinction. Calculate the percentageof students placed in the second and first division. (Assume normal distributionof marks.)

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Description: In an examination it is laid down that a student passes if he secures 30 per centor more marks. He is placed in the first, second or third division according as hesecures 60% or more marks, between 45% and 60% marks and marks between30% and 45% resp

Let X be a random variable following normal distribution with mean μ and variance σ2, i.e., X~N(μ,…

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ore marks. He is placed in the first, second or thirc res 60% or more marks, between 45% and 60% m and 45% respectively. He gets distinction in case ks. It is noticed from the result that 13% of the nination whereas 8% of them obtained distinction.

ore marks. He is placed in the first, second or thirc res 60% or more marks, between 45% and 60% m and 45% respectively. He gets distinction in case ks. It is noticed from the result that 13% of the nination whereas 8% of them obtained distinction.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

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.

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In an examination it is laid down that a student passes if he secures 30 per cent
or more marks. He is placed in the first, second or third division according as he
secures 60% or more marks, between 45% and 60% marks and marks between
30% and 45% respectively. He gets distinction in case he secures 80% or more
marks. It is noticed from the result that 13% of the students failed in the
examination, whereas 8% of them obtained distinction. Calculate the percentage
of students placed in the second and first division. (Assume normal distribution
of marks.)

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