## MP Board Class 7th Maths Solutions Chapter 3 Data Handling Ex 3.4

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.

Solution:

(i) Certain to happen

(ii) Can happen but not certain

(iii) Impossible as there are only six faces of a die marked as 1, 2, 3, 4, 5 and 6 on it.

(iv) Can happen but not certain

(v) Can happen but not certain

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 21

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

Solution:

Probability of an event

(ii) Probability of drawing a marble with number 5 = \(\frac{1}{6}\).

Question 3.

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

Solution:

A coin has two faces – Head and Tail. One team can opt either Head or Tail. Probability of an event

Probability (our team will start first) = \(\frac{1}{2}\)