RBSE Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.4

Rajasthan Board RBSE Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.4 Textbook Exercise Questions and Answers.

RBSE Class 7 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.
Answer:
Certain to happen.

(ii) A tossed coin will land heads up.
Answer:
Can happen but not certain?

(iii) A dice when tossed shall land up with 8 on the top.
Answer:
Impossible to happen.

(iv) The next traffic light seen will be green.
Answer:
Can happen but not certain?

(v) Tomorrow will be a cloudy day.
Answer:
Can happen but not certain?

Question 2.
There are 6 marbles in a box with number from 1 to 6 marked on each of them.
(i) What is the probability of drawing a marble with number 2?
(ii) What is probability of drawing a marble with number 5?
Answer:
(i) Number of marbles with number 2 = 1
Total number of marbles = 6
P (drawing a marble with number 2)
= \(\frac{\text { Number of marbles with number } 2}{\text { Total marbles }}=\frac{1}{6}\)

(ii) Number of marbles with number 5 = 1
Total number of marbles = 6
P (drawing a marble with number 5)
= \(\frac{\text { Number of marbles with number } 5}{\text { Total marbles }}=\frac{1}{6}\)

Question 3.
A coin is flipped to decide which team starts the game. What is the probability that your team will start?
Answer:
There are equal chances of losing or winning the toss, so Probability to start game = \(\frac{1}{2}\)