Q 1 – The width or size of the class interval 30-40 is:
a) 10
b) 30
c) 40
d) 70
Q 2 – If a coin is flipped in the air, what is the probability of getting a tail?
a) 0
b) ½
c) 1
d) 2
Q 3 – A bag has 4 red balls and 4 green balls, what is the probability of getting a red ball randomly?
a) 1/4
b) 1/8
c) 1/2
d) 0
Q 4 – If a die is thrown in air, the probability of getting even numbers is:
a) ½
b) ⅙
c) ⅓
d) ⅔
Q 5 – Pictorial representation of data using symbols is known as:
a) Bargraph
b) Pictograph
c) Piechart
d) None of these
Q 6 – Double bar graphs display ______ sets of data simultaneously.
a) Four
b) Three
c) Two
d) No
Q 7 – _________ gives the number of times a particular entry occurs.
a) Organisation of data
b) Collection of Data
c) Representation of Data
d) Frequency distribution table
Q 8 – In grouped data, each of the group is called:
a) Class interval
b) Collection of data
c) Frequency
d) Grouped frequency distribution
Q 9 – If 20-30 is the class interval of grouped data, then lower class limit is:
a) 50
b) 30
c) 20
d) 10
Q 10 – The difference between the upper class limit and lower class limit of a class interval is called:
a) Frequency
b) Width
c) Grouped data
d) Ungrouped data
Q 11 – A group of 20 students recorded their heights (in cm). The data received were as given below. What is the range?
150, 120, 112, 160, 155, 151, 158, 142, 148, 149, 161, 165, 140, 157, 156, 146, 148, 153, 138, 135
Q 12 – In the given pie chart, which colour is most popular? Which colour is the least popular?
Q 13 – Construct a frequency table for the following marks obtained by 50 students using equal Intervals taking 16-24 (24 not included) as one of the class-intervals.
52, 16, 18, 20, 42, 48, 39, 38, 54, 58, 47, 37, 25, 16, 42, 49, 36, 35, 53, 21, 30, 43, 56, 34, 33, 17, 22, 24, 37, 41, 40, 50, 54, 56, 54, 36, 38, 42, 44, 56, 17, 18, 22, 24, 17, 48, 58, 23, 29, 58
Q 14 – The double bar graph shows the average monthly temperatures of two cities over 4 months period. Read the graph carefully and answer the questions given below:
(i) What does each 1 cm block on the vertical axis represent?
(ii) What was the average monthly temperature in Dehradun in
(a) March
(b) April
(c) May
(d) June?
(iii) What was the average monthly temperature in Delhi for the whole 4 months?
(iv) In which month was the difference between the temperature of Delhi and Dehradun maximum and how much?
Q 15 – The following table represents the number of students in a school playing six different games.
Present the above information on a bar graph
Q 16 – Mrs Verma spends her allowance in the following way.
Represent the above information by a pie chart.
Q 17 – Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of:
(i) getting a number 6?
(ii) getting a number less than 6?
(iii)getting a number greater than 6?
(iv)getting a 1-digit number?