The mean can also be thought of as the balance point most common point O point of no return O center point

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Q: II. Create a normal distribution and explain the test scores of the students in each particular…

A: Given: Mean μ=179 Standard deviation σ=17

Q: then the overall mean and variance are

A: here from given information  n1 = 4 n2 = 6 n3 = 5   x1¯ = 2   , x2¯ = 2   , x3¯ = 2  σ21 = 3 , σ22 =…

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Q: The average score of 200 students in a mathematics test is 75 with a standard deviation of 4. Then…

A: Solution-: Given: \mu=75, \sigma=4, n=200 (Number of students) Let, X= The score of students in a…