[Solved] A random sample of 146 students in Math 1160 gave the following grade information (A= 4.0, B= 3.0, C= 2.0, D= 1.0, and F=0). In the following table
Question: A random sample of 146 students in Math 1160 gave the following grade information ( A= 4.0, B= 3.0, C= 2.0, D= 1.0, and F=0). In the following table x = grade and f = number of students receiving this grade.
X 0 1 2 3 4
F 8 14 62 43 19
- Find the sample mean
- Find the sample variance
- Find the sample standard variation
- Compute the coefficient of variation for this data
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(Solution Library) . Find χ _R^2 and χ _L^2 for each of
Solution: Find the 95% confidence interval for the variance and
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