Ex 3.4, 1 - Chapter 3 Class 7 Data Handling

Transcript

Ex 3.4, 1 Tell whether the following is certain to happen, impossible, can happen but not certain. (i) You are older today than yesterday. Since we are always older than yesterday. It is certain to happen Ex 3.4, 1 Tell whether the following is certain to happen, impossible, can happen but not certain. (ii) A tossed coin will land heads up. A coin toss can be heads or tails So, it can happen but not certain Ex 3.4, 1 Tell whether the following is certain to happen, impossible, can happen but not certain. (iii) A die when tossed shall land up with 8 on top. A die can have 1, 2, 3, 4, 5, 6 So, 8 can never be possible So, it is impossible. Ex 3.4, 1 Tell whether the following is certain to happen, impossible, can happen but not certain. (iv) The next traffic light seen will be green. If traffic signal is red, next traffic signal is green If traffic signal is green, next traffic signal is red So, it can happen but not certain Ex 3.4, 1 Tell whether the following is certain to happen, impossible, can happen but not certain. (v) Tomorrow will be a cloudy day. Tomorrow can also be sunny or cloudy or raining So, it can happen but not certain