Business Statistics And Research Methods - Study Mode

[#621] The age number of the students of a class are 15, 17,18, 20, 22, 24, 21, 17, 16, 15, 21, 22, 23, 22, 17, 22, 18, 22, 19 and 20. What will be mode of the series?
Correct Answer

(C) 22

[#622] Consider the following statistical tests. 1. 'F' test 2. 'T' test 3. 'Z' test 4. 'Chi-square' test Which of these are parametric tests?
Correct Answer

(C) 1, 2 and 3

[#623] If correlation coefficient is 0.8 then the coefficient of alienation shall be-
Correct Answer

(B) 0.6

[#624] Data obtained from statistical journal-
Correct Answer

(B) Secondary data

[#625] The range based on middle 50% of the observations is called . . . . . . . .
Correct Answer

(A) quartile deviation