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NCERT Exemplar Solutions Class 8 Mathematics Solutions for Data Handling - Exercise in Chapter 2 - Data Handling

Question 179 Data Handling - Exercise

A coin is tossed 200 times and head appeared 120 times. The probability of getting a head in this experiment is

(a) 2/5 (b) 3/5 (c) 1/5 (d) 4/5

Answer:

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about how probable an event is to happen, or its chance of happening. Probability can range from 0 to 1, with 0 denoting an impossibility and 1 denoting a certainty.

(b) 3/5

Probability = Number of times head appeared / Total number of times coin is tossed

= 120/200

= 12/20 … [divide both numerator and denominator by 4]

= 3/5

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