Click the appropriate answer:

1 The quantity which represents the entire set of data in the best possible way is called the ------

Arithmetic mean Median statistical mean

2 The lower limit below sigma i = 1 stands for -----

second term first term third term

3 The upper limit above sigma i = n stand for ------

last term second term first term

4 When the data are arranged either in ascending or descending order of magnitude the value of the middle most observation is called the ------ of the data

Median Mode Frequency

5 If x1 and x2 be the two means computed for n1 and n2 observations respectively, the mean x of observations of two groups is given by -----

weighed mean combined mean arithmatic mean

6 If w1, w2, w3...... Wn are weights assigned to x1,x2,x3......xn respectively, then we define it as --------

arithmatic mean combined mean weighed arithmetic mean

7 The Arithmatic mean of first five prime numbers is --------

5.6 6.5 4.2

8 The mean of 10 observations is 9 and if each observation is multiplied by 2 then new mean is ---------

16 18 15

9 If the mean of 16 observations is 25 and 4 be added to each observation then new mean is ----------

30 29 36

10 The mean of 6, 8, x, 12, 14 is 56 \ x = ------

12 14 16

11 The median of 37, 5, 15, 92, 19, 42, 62, 87, 32, 44 is ------

41 43 42

12 The median of 17, 19, 32, 10, 22, 21, 9, 35 is ------

20 30 40

13 The mean of 16 numbers is 8; If 2 is added to every number, \ New mean will be -----

11 12 10

14 The weight of 7 boxes is 70, 73, 72, 76, 74, 80, 134 \ Average = -----

74 64 84

15 The mean of 21 numbers is 15. If each number is multiplied by 2 \ New mean is -----

60 30 40

16 The median of 35, 15, 37, 87, 65, 56, 17, 3, 52, 39 is -----

68 38 48