Question

card drawn from a pack of cards numbered from 21 to 70 find the probability of getting a card which is perfect square​

Answer 1

Answer:

23/25

Step-by-step explanation:

n[s]= 50

n[E] = 46

P[E] = n[E] /n[s]

= 46/50

= 23/ 25

Answer 2

The probability of getting a card which is perfect square = 2/25

Given :

A card drawn from a pack of cards numbered from 21 to 70

To find :

The probability of getting a card which is perfect square

Solution :

Step 1 of 3 :

Find total number of possible outcomes

Here it is given a card drawn from a pack of cards numbered from 21 to 70

Total number of cards = 70 - 21 + 1 = 50

So the total number of possible outcomes = 50

Step 2 of 3 :

Find total number of possible outcomes for the event

Let A be the event that of getting a card which is perfect square

So the event points are 25 , 36 , 49 , 64

So total number of possible outcomes for the event A is 4

Step 3 of 3 :

Find the probability

Hence the required probability

= P(A)

$\displaystyle \sf{ = \frac{Number \: of \: favourable \: cases \: to \: the \: event \: A }{Total \: number \: of \: possible \: outcomes }}$

$\displaystyle \sf{ = \frac{4}{50} }$

$\displaystyle \sf{ = \frac{2}{25} }$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. probability of a 10 year flood occurring at least once in the next 5 years is

https://brainly.in/question/23287014

2. among 21 components 3 are defective. what is the probability that a component selected at random is not defective

https://brainly.in/question/22719974