Conducting Experiments Quiz - CBSE Class 7 Mathematics

Free practice quiz: Conducting Experiments (CBSE Class 7 Mathematics). 12 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is the probability of landing on heads when you flip a fair coin?

   1. 1/2
   2. 1/3
   3. 1/4
   4. 1
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   Answer: A. 1/2

   A fair coin has two sides: heads and tails. Since it is equally likely to land on either side, the probability is 1/2.

2. If you roll a six-sided die, what is the probability of rolling an even number?

   1. 1/3
   2. 1/2
   3. 2/3
   4. 1/6
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   Answer: B. 1/2

   The even numbers on a six-sided die are 2, 4, and 6, giving 3 successful outcomes. There are 6 possible outcomes, so the probability is 3/6, which simplifies to 1/2.

3. In a deck of cards, what is the probability of drawing a heart or a spade?

   1. 1/2
   2. 1/4
   3. 1/13
   4. 26/52
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   Answer: A. 1/2

   There are 13 hearts and 13 spades in a standard deck, totaling 26 cards. So the probability is 26/52, which simplifies to 1/2.

4. What is the probability of drawing a face card (Jack, Queen, King) from a deck of cards?

   1. 3/13
   2. 12/52
   3. 1/4
   4. 9/52
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   Answer: A. 3/13

   There are 12 face cards in a deck of 52 cards. Hence, the probability is 12/52, which simplifies to 3/13.

5. In a standard deck of cards, what is the probability of drawing two consecutive hearts?

   1. 1/17
   2. 13/102
   3. 1/16
   4. 1/29
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   Answer: A. 1/17

   The probability of drawing the first heart is 13/52. After drawing one heart, 12 hearts are left in a 51-card deck, giving a 12/51 chance. Thus, (13/52) * (12/51) = 1/17.

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