Question

there are 6 marbles in a box with numbers from 10 to 15 marked on each of them.

What is the probability of drawing a marble with number 2​

Answer 1

Solution:

Total number of marbles = 6

So n(s) = 6

Number of marbles marked with 2 = 1

n(e) = 1

Probability = \frac{Number\ of\ favourable\ outcomes}{Total\ number\ of\ outcomes}\

=\ \frac{n\left(e\right)}{n\left(s\right)}\ =\ \frac{1}{6}

ii) Total number of marbles = 6

n(s) = 6

Number of marbles marked 5 = 1

n(e) = 1

Probability = \frac{Number\ of\ favourable\ outcomes}{Total\ number\ of\ outcomes}\

=\ \frac{n\left(e\right)}{n\left(s\right)}\ =\ \frac{1}{6}