The distribution of the grades in a 200-person exam shows normal distribution. The mean and standard deviation of the distribution is 75 and 15, respectively. Calculate the following with the help of...


The distribution of the grades in a 200-person exam shows normal distribution. The<br>mean and standard deviation of the distribution is 75 and 15, respectively. Calculate the<br>following with the help of standard normal distribution table below.<br>i)<br>ii)<br>iii)<br>How many people are there between 60 and 65?<br>What is the lowest score in the top 15%?<br>How many people have scored above 70 points?<br>

Extracted text: The distribution of the grades in a 200-person exam shows normal distribution. The mean and standard deviation of the distribution is 75 and 15, respectively. Calculate the following with the help of standard normal distribution table below. i) ii) iii) How many people are there between 60 and 65? What is the lowest score in the top 15%? How many people have scored above 70 points?

Jun 10, 2022
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