Mathematics Practice Test – Statistics

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Mathematics Practice Test – Statistics


Hello and Welcome to Mathematics Practice Tests - Statistics

  1. You are to attempt 5 random objectives questions ONLY.
  2. Supply Your Full Name and Location in the text box below and begin immediately.
  3. You can attempt as many times as possible


Find the variance of 1, 2, 0, -3, 5, -2, 4

A. \frac{52}{7}     B. \frac{40}{7}     C. \frac{32}{7}     D. \frac{27}{7}


Given that the mean of the scores 15, 21, 17, 26, 18 and 29 is 21, calculate the standard deviation of the scores.

A.     B. 4     C. 5     D.



What is the median class?

A. 60.5 - 70.5    B. 50.5 - 60.5    C. 40.5 - 50.5    D. 30.5 - 40.5



From the table above, find the median and range of the data respectively.

A. (8, 5)    B. (3, 5)     C. (5, 8)     D. (5, 3)



The bar chart above shows the distribution of SS2 students in a school. Find the total number of students.

A. 180    B. 135    C. 210    D. 105


 



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