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.)

Name: In an examination it is laid down that a student passes if he secures
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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.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter4: Factors, Fractions, And Exponents

Section4.4: Least Common Multiple

Problem 64E

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