Find the mode from the following data. Class Interval Frequency 0 - 5 2 5 - 10 6 10 - 15 10 15 - 20 16 20 - 25 22 25 - 30 11 30 - 35 8 35 - 40 5

Draw an ogive on the graph paper after calculating the cumulative frequency (less than type) of the following data: Class Interval Frequency 0 - 10 1 10 - 20 5 20 - 30 15 30 - 40 20 40 - 50 15 50 - 60 6 60 - 70 1

The median of following data is 32. Find the value of x and y if x + y = 100. Class Interval Frequency 0 - 10 10 10 - 20 x 20 - 30 25 30 - 40 30 40 - 50 y 50 - 60 10

Find the mode of the following frequency distribution : Class Frequency 50 - 59 5 60 - 69 20 70 - 79 40 80 - 89 50 90 - 99 30 100 - 109 6

If the arithmetic mean and total frequency of the following distribution are 50 and 120 respectively, then find the value of f1 and f2: Class Frequency 0 - 20 17 20 - 40 f1 40 - 60 32 60 - 80 f2 80 - 100 19

Find the mean by any suitable method from the following frequency distribution table Class Interval Frequency 85 - 105 3 105 - 125 12 125 - 145 18 145 - 165 10 165 - 185 5 185 - 205 2

27, 31, 46, 52, x, y + 2, 71, 79, 85, 90 are in increasing order. If the median is 64, then the value of x + y is (a) 125 (b) 127 (c) 128 (d) 126

The mean of a frequency distribution is 7 and Σfx = 140, then find the value of Σf

State True or False: The average of n numbers is x̄. If the sum of first (n−1) numbers is K, then nth number is (n−1) x̄ + K.

If A and M be the arithmetic mean and median of first ten natural numbers, then relation between them will be - (a) A > M (b) A < M (c) A = (d) A = M

The age of 100 persons present in a workshop is given in the following table. Find the average age of 100 people (by any method): Age Group Number of People 10 - 20 8 20 - 30 12 30 - 40 20 40 - 50 22 50 - 60 18 60 - 70 20

Construct the table of cumulative frequency (greater than type) and draw the ogive from the following frequency distribution : Class Frequency 0 - 10 7 10 - 20 10 20 - 30 23 30 - 40 50 40 - 50 6 50 - 60 4