NCERT Solutions Class 7 Mathematics Data Handling Ex 3.4

Class 6 - Mathematics
Chapter - Data Handling : Exercise 3.4

NCERT Solutions Class 7 Mathematics textbook
Top Block 1

Question: 1.Tell whether the following is certain to happen, impossible can happen but not certain.

(i) You are older today than yesterday.

(ii) A tossed coin will land heads up.

(iii) A die when tossed shall land up with 8 on top.

(iv) The next traffic light seen will be green.

(v) Tomorrow will be a cloudy day.

Answer :
(i) It is certain to happen.

(ii) It can happen but not certain.

(iii) It is impossible.

(iv) It can happen but not certain.

(v) It can happen but not certain.

Mddle block 1

Question: 2.There are 6 marbles in a box with numbers from 1 to 6 marked on each of them.

(i) What is the probability of drawing a marble with number 2?

(ii) What is the probability of drawing a marble with number 5?

Answer :
Total marbles from 1 to 6 marked in a box = 6

(i)The probability of drawing a marble with number 2.

⇒ P (drawing one marble) = 16

(ii)The probability of drawing a marble with number 5.

⇒P (drawing one marble) = 16

Question: 3.A coin is flipped to decide which team starts the game. What is the probability that your team will start?

Answer :
A coin has two possible outcomes Head and Tail.

Probability of getting Head or Tail is equal.

∴ P (Starting game) = 12

Bottom Block 3
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