**NCERT Solutions for Class 7 Maths**

Chapter 3 Data Handling

Exercise 3.4

Chapter 3 Data Handling

Exercise 3.4

**1. 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
**

(v) Tomorrow will be a cloudy day.

**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**

(ii) Probability of drawing marble with number 5, P(5) = 1/6

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

**Answer**

On tossing a coin, the possible outcome is head (H) or tail (T).

Total number of possible outcomes = 2

and total number of favourable outcomes = l

∴ Required probability = 1/2