Arithmetic mean of two positive numbers “X” and “Y” is_________________?

Related Mcqs:

1. The mean of 10 numbers is 9, then sum of these numbers will be__________________?

   A. 9
   B. 0.9
   C. 70
   D 90

2. Arithmetic Mean is___________affected by extreme values?

   A. Not
   B. Highly
   C. Less
   D. None of these

3. For a certain distribution if ∑(x−2)=18,∑(x−24)=0,∑(x−28)=−24) then arithmetic mean is_______________?

   A. 21
   B. 24
   C. 28
   D. 0

4. Arithmetic mean is _________ by change of origin and scale of measurement?

   A. Vary
   B. Negative
   C. Affected
   D. Not affected

5. The arithmetic mean _________ by 10 if 10 is added to all values?

   A. Decease
   B. Smaller
   C. Largest
   D. Increase

6. The arithmetic mean of 10,8,6,4, and 2 is ______________?

   A. 5
   B. 15
   C. 6
   D. 30

7. The variance of 5 numbers is 10. If each number is divided by 2, then the variance of new numbers is______________?

   A. 20
   B. 5
   C. 2.5
   D. 5.5
   E. 0

8. The Harmonic Mean of any two numbers is________________?

   A. a+b2
   B. 2aba+b
   C. ab−−√
   D. a+b

9. Median is _______ than mean is a positive skewed distribution?

   A. Great
   B. lesser
   C. Equal
   D. None of these

10. Combine mean calculated by different given mean is ________?

    A. n1x1 + n2x2x + _____ nuxu/n1 +n2 + ___ + nu
    B. n1x1 + n2x2x + _____ nuxu/x1 + x2 + ____ x4
    C. n1x1 + n2x2x + _____ nuxu/n1 + n2 + ___+ nu
    D. ∑n1x/x1