Question

A number is selected at random from first 70 natural no. Find the probability that it is a perfect square no.

Answer 1

according to me your answer should be

8/70

Answer 2

The probability that it is a perfect square number is $\frac{4}{35}$

Solution:

The probability of an vent is given as:

$Probability = \frac{ \text{ number of favorable outcomes }}{ \text{ total number of possible outcomes }}$

Given that,

A number is selected at random from first 70 natural number

Therefore,

Total number of possible outcomes = 70

Favorable outcome = perfect square number

Favorable outcome = 1, 4, 9, 16, 25, 36, 49, 64

Number of favorable outcome = 8

Thus,

$Probability = \frac{8}{70}\\\\Probability = \frac{4}{35}$

Thus the probability that it is a perfect square number is $\frac{4}{35}$

Learn more:

A bag contains 6 red and 5 black balls find the probability of getting a black ball

https://brainly.in/question/8731585

Two coins are tossed once. Find the probability of getting (1) two tails(2) exactly one head (3) two heads and also find the sum of probabilities of 1,2 and 3....

https://brainly.in/question/7741922