The mode of the data 22,29, 27, 23, 43, 41, 27 is

1

(a)

23 and 27

(b)

27

(c)

23 and 43

(d)

22

The mean of three numbers is 40. All the three numbers are different natural numbers. If lowest is 19, what could be the heighest possible number of remaining two numbers?

1

(a)

81

(b)

40

(c)

100

(d)

71

A bag is having 4 red balls and 6 yellow balls. If a ball is pulled out without seeing them, then find the probability of getting a red ball.

1

(a)

\(\frac { 2 }{ 5 } \)

(b)

\(\frac { 3 }{ 5 } \)

(c)

\(\frac { 9 }{ 12 } \)

(d)

\(\frac { 2 }{ 3 } \)

The representation of data with bars of uniform width is called _____

1

(a)

Bar graph

The mode of the following data 62,61,49,37, 91,61,47, 53, 54, 97, 98, 99 is

1

(a)

67

When a die is thrown, the probability of getting a number less than 7 is _____

1

(a)

1

The mode is always one of the numbers in a data

1

(a) False

(b) True

The data 6, 4, 3, 8, 9, 12, 13, 9 has mean 9

1

(a) True

(b) False

When a coin is tossed, there are 2 possible outcomes.

1

(a) True

(b) False

If a die is thrown, then the probability of getting a number greater than 6 is 1

1

(a) False

(b) True

Find the range of heights of any ten students of your class.

2

(a)

The heights of 10 girls were measured (in cm) and the results are as follows: 135, 150,139, 128, 151, 132, 146, 149, 143, 141 - What is the height of the tallest girl?

2

(a)

The median of the following observations arranged in ascending order is 24. Find the value of x. 11,12,14,18,(x+2),(x+4),30,32,35,41

2

(a)

How would you find the average of your study hours for the whole week?

3

(a)

Following table shows the points of each player scored in four games

Players	Game	Game	Game	Game
	1	2	3	4
A	14	16	10	10
B	0	8	6	4
C	8	11	Did not play	13

To find the mean number of points per game for C, would you divide the total points by 3 or by 4? Why?

3

(a)

Your friend found the median and the mode of a given data. Describe and correct your friends' error, if any: 35, 32, 35, 42, 38, 32, 34 Median = 42 and Mode = 32

3

(a)

Think of some situations, at least 3 examples of each, that are certain to happen, some that are impossible and some that may or may not happen i.e. situations that have some chance of happening.

5

(a)