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Tally marks are used to find (a) Class intervals (b) Range (c) Frequency (d) Upper limit

The correct answer is (c) Frequency Explanation Tally marks are described in the unary numeral system. It is a form of numeral used for... View Article

Data represented using circles is known as (a)Bar graph (b) Histogram (c) Pictograph (d) Pie chart

The correct answer is (d) Pie chart Explanation A pie chart is a type of graph that represents the data in the circular graph. A pie... View Article

In a throw of a dice, the probability of getting the number 7 is (a) ½ (b) 1/6 (c) 1 (d) 0

The correct answer is (d) 0 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

Size of the class 150 –175 is (a) 150 (b) 175 (c) 25 (d) –25

The correct answer is (c) 25 Explanation Class size is defined as the difference between the true upper limit and true lower limit of a class... View Article

A graph showing two sets of data simultaneously is known as (a) Pictograph (b) Histogram (c) Pie chart (d) Double bar graph

The correct answer is (d) Double bar graph Explanation A double bar graph is a graphical display of information using two bars beside... View Article

Total number of outcomes, when a ball is drawn from a bag which contains 3 red, 5 black and 4 blue balls is (a) 8 (b) 7 (c) 9 (d) 12

The correct answer is (d) 12 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

A coin is tossed 12 times and the outcomes are observed as shown below: The chance of occurrence of Head is (a) ½ (b) 5/12 (c) 7/12 (d) 5/7

The correct answer is (b) 5/12 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

What is the central angle of the sector (in the above pie chart) representing hormones enzymes and other proteins. (a) 120o (b) 144o (c) 156o (d) 176o

The correct answer is(b) 144o Explanation From the pie chart, we observe that Distribution of protein in the skin = 1/10 Distribution of protein... View Article

What is the central angle of the sector (in the above pie chart) representing skin and bones together? (a) 36o (b) 60o (c) 90o (d) 96o

The correct answer is (d) 96o Explanation From the pie chart, we observe that Distribution of protein in the skin = 1/10 Distribution... View Article

The following pie chart represents the distribution of proteins in parts of a human body. What is the ratio of distribution of proteins in the muscles to that of proteins in the bones? (a) 3 : 1 (b) 1 : 2 (c) 1 : 3 (d) 2 : 1

The correct answer is (d) 2: 1 Explanation From the given pie chart we observe that Distribution of protein in the muscles = 1/3... View Article

Rohan and Shalu are playing with 5 cards as shown in the figure. What is the probability of Rohan picking a card without seeing, that has the number 2 on it? (a) 2/5 (b) 1/5 (c) 3/5 (d) 4/5

The correct answer is (d) 2: 1 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

The following pie chart gives the distribution of constituents in the human body. The central angle of the sector showing the distribution of protein and other constituents is (a) 108o (b) 54o (c) 30o (d) 216o

The correct answer is(a) 108o Explanation From the pie chart, we observe that The distribution of constituents in the human body = 16%... View Article

Monthly salary of a person is Rs. 15000. The central angle of the sector representing his expenses on food and house rent on a pie chart is 60°. The amount he spends on food and house rent is (a) Rs. 5000 (b) Rs. 2500 (c) Rs. 6000 (d) Rs. 9000

The correct answer is (b) Rs. 2500 Explanation A pie chart is a type of graph that represents the data in the circular graph. A pie... View Article

Data collected in a survey shows that 40% of the buyers are interested in buying a particular brand of toothpaste. The central angle of the sector of the pie chart representing this information is (a) 120o (b) 150o (c) 144o (d) 40°

The correct answer is (c) 144o Explanation A pie chart is a type of graph that represents the data in the circular graph. A pie... View Article

A coin is tossed 200 times and head appeared 120 times. The probability of getting a head in this experiment is (a) 2/5 (b) 3/5 (c) 1/5 (d) 4/5

The correct answer is (b) 3/5 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

In a frequency distribution with classes 0 –10, 10 –20 etc., the size of the class intervals is 10. The lower limit of fourth class is (a) 40 (b) 50 (c) 20 (d) 30

The correct answer is (d) 30 Explanation The lower value of the class interval is called its Lower Class Limit. First class=0 -10 Second... View Article

Rahul, Varun and Yash are playing a game of spinning a coloured wheel. Rahul wins if spinner lands on red. Varun wins if spinner lands on blue and Yash wins if it lands on green. Which of the following spinner should be used to make the game fair? (a) (i) (b) (ii) (c) iii (d) (iv)

The correct answer is (d) (iv) Explanation Figure (iv) contains an equal share for three colours in comparison with other figures. ... View Article

Ram put some buttons on the table. There were 4 blue, 7 red, 3 black and 6 white buttons in all. All of a sudden, a cat jumped on the table and knocked out one button on the floor. What is the probability that the button on the floor is blue? (a) 7/20 (b) 3/5 (c) 1/5 (d) ¼

The correct answer is (c) 1/5 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

Listed below are the temperature in oC for 10 days. –6, –8, 0, 3, 2, 0, 1, 5, 4, 4 What is the range of the data?

The correct answer is (b) 13oC Explanation The range in statistics for a given data set is the difference between the highest and lowest... View Article

Which of the following is a reasonable conclusion for the given data? (a) (1/20)th student voted for blue colour (b) Green is the least popular colour (c) The number of students who voted for red colour is two times the number of students who voted for yellow colour (d) Number of students liking together yellow and green colour is approximately the same as those for red colour.

The correct answer is (d) Number of students liking together yellow and green colour is approximately the same as those for red colour.... View Article