Question

At an examination it was felt appropriate to pass 75% of the candidates. From previous years the average mark obtained at the examination was known to be 68% with a standard deviation of 14. What must the pass mark be if the above is to be achieved?

Name: at an examination it was felt appropriate to pass 75 of the candidates from previous years the average mark obtained at the examination was known to be 68 with a standard deviation of 14 wha 28904
Uploaded: 2023-02-26T15:45:53-08:00
Duration: 1 min 38 s
Channel: Sri K
Description: at an examination it was felt appropriate to pass 75 of the candidates from previous years the average mark obtained at the examination was known to be 68 with a standard deviation of 14 wha 28904

          At an examination it was felt appropriate to pass 75% of the candidates. From previous years the average mark obtained at the examination was known to be 68% with a standard deviation of 14.  What must the pass mark be if the above is to be achieved?

Added by Linda M.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

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Solved by Expert Sri K

02/26/2023

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We need to find the pass mark that will result in 75% of the candidates passing the examination. The average mark is 68% and the standard deviation is 14. Show more…

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At an examination it was felt appropriate to pass 75% of the candidates. From previous years the average mark obtained at the examination was known to be 68% with a standard deviation of 14. What must the pass mark be if the above is to be achieved?