Chapter 7
The Mathematics of Maybe: Introduction to Probability
CBSE Class 9
Mathematics Solutions
Educart Mathematics class Class 9 NCERT Exemplar cover
Question:

I throw a pair of 6-sided dice. Write down an event that has a probability of 0 and an outcome that has a probability of 1.

Answer: Verified

Probability 0 (impossible event): 'The sum of the two dice is 1.'
The minimum possible sum is 1 + 1 = 2, so sum = 1 is impossible.

Probability 1 (certain outcome/event):

'The sum of the two dice is between 2 and 12 (inclusive).' Every possible outcome has a sum in this range, so this event is certain.

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