Statistics & Data Analysis Mock Tests
96 questions available
Statistics & Data Analysis Mock Test 1
Questions:
30
Statistics & Data Analysis Mock Test 2
Questions:
30
Statistics & Data Analysis Mock Test 3
Questions:
30
Statistics & Data Analysis Mock Test 4
Questions:
6
नमूना प्रश्न
The mean of a random variable X is 3 and the variance is 4. If Y = 2X − 1, then the mean and variance of Y are respectively:
A student scored 78, 85, 92, and 80 on four tests. What score must the student earn on a fifth test to have an average of 86 across all five tests?
A data set consists of the numbers 3, 6, 6, 8, 9, 9, 9, 10. What is the mean of this data set?
The average of five numbers is 24. Four of the numbers are 18, 22, 26, and 30. What is the fifth number?
What is the mean of the data set 10, 15, 20, 25, 30?
What is the sample standard deviation of the data set 1, 3, 5, 7, 9?
A data set has a mean of 15 and a standard deviation of 3. Which value is more than 2 standard deviations above the mean?
The standard deviation of the data set 1, 1, 1, 1 is:
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