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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

If 400 students voted in all, then how many did vote ‘Others’ colour as their favorite? (a) 6 (b) 20 (c) 24 (d) 40

The correct answer is (c) 24 Explanation From the pie chart, we observe that, 6% out of 400 students voted for others, So, = (6%/100%)... View Article

Which colour received 1/5 of the votes? (a) Red (b) Blue (c) Green (d) Yellow

The correct answer is (c) Green Explanation = 1/5 × 100 = 0.2 × 100 = 20%... View Article

In a school only, 3 out of 5 students can participate in a competition. What is the probability of the students who do not make it to the competition? (a) 0.65 (b) 0.4 (c) 0.45 (d) 0.6

The correct answer is (b) 0.4 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

What is the probability of choosing a vowel from the alphabets? (a) 21/26 (b) 5/26 (c) 1/26 (d) 3/26

The correct answer is (b) 5/26 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

Which of the following is not a random experiment? (a) Tossing a coin (b) Rolling a dice (c) Choosing a card from a deck of 52 cards (d) Throwing a stone from a roof of a building

The correct answer is (d) Throwing a stone from a roof of a building Explanation There is only one output that is the stone will fall down... View Article

The range of the data 30, 61, 55, 56, 60, 20, 26, 46, 28, 56 is (a) 26 (b) 30 (c) 41 (d) 61

The correct answer is (c) 41 Explanation The range in statistics for a given data set is the difference between the highest and lowest... View Article

In a pie chart, the total angle at the centre of the circle is (a) 180o (b) 360o (c) 270o (d) 90o

The correct answer is (b) 360o Explanation A pie chart is a type of graph that represents the data in the circular graph. A pie... View Article