Question

there are 6 tickets numberd from 1 to 60 coin a box. a tickets is drawn at random find the probability that marble drawn is not green.​

Answer 1

Answer:

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Chapters in NCERT Solutions - Mathematics, Class 7

Exercises in Data Handling

Question 2

Q2) There are 6 marbles in a box with numbers from 1 to 6 marked on each of them.

(i) What is the probability of drawing a marble with number 2?

(ii) What is the probability of drawing a marble with number 5?

Solution

Transcript

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}\

Total number of outcomes

Number of favourable outcomes

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

n(s)

n(e)

=

6

1

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}\

Total number of outcomes

Number of favourable outcomes

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

n(s)

n(e)

=

6

1