Question

Probability
Class 10
•Please answer both the questions.​

Answer 1

• To find:- Probability (x²< 2)

• Total number of outcomes (random numbe x) = 5 (-2,-1,0,1,2)

To find the no. of favorable outcomes , find square of each outcome.

• (-2)² = 4 ❌(not favorable)
• (-1)² = 1 ✔️ (favorable)
• (0)² = 0✔️(favorable)
• (1)² = 1 ✔️ (favorable)
• (2)² = 4 ❌(not favorable)

So, no. of favorable outcomes = 3

Probability (x²<2) = $\frac{no.of favorable outcomes}{Total no. of outcomes}$ = $\frac{3}{5}$

Answer 2

Answer:

To find:- Probability (x²< 2)

Total number of outcomes (random numbe x) = 5 (-2,-1,0,1,2)

To find the no. of favorable outcomes , find square of each outcome.

(-2)² = 4 ❌(not favorable)

(-1)² = 1 ✔️ (favorable)

(0)² = 0✔️(favorable)

(1)² = 1 ✔️ (favorable)

(2)² = 4 ❌(not favorable)

So, no. of favorable outcomes = 3

Probability (x²<2) = \frac{no.of favorable outcomes}{Total no. of outcomes}

Totalno.ofoutcomes

no.offavorableoutcomes

= \frac{3}{5}

5

3