The points obtained by students of a class in a test are normally distributed with a mean of 60 points and a standard deviation of 5 points. About what percent of students have scored between 60 and 65 points?
2 answers:
Answer:
34%
Step-by-step explanation:
Using Empirical Rule (68 - 95 - 99.7 Rule), 68% of the data lies in between 1 standard deivation from the mean so since you are not doing 55 to 65 and instead 60 to 65, you divide 68 by 2 and you get 34%.
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Answer: The percent of students have scored between 60 and 65 points is 34.13%
Step-by-step explanation:
Given : The points obtained by students of a class in a test are normally distributed with a mean of 60 points and a standard deviation of 5 points.
i.e.
Let x denotes the points obtained by students of a class in a test .
Now , the probability that the students have scored between 60 and 65 points :-
Hence, the percent of students have scored between 60 and 65 points is 34.13%.
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