Question

three coins tossed 200 times. the number of times 2 heads came up is 72. then the probability of 2 heads coming up is ​

Answer 1

Answer:

9/25

Step-by-step explanation:

Answer 2

The probability of 2 heads coming up is 9/25

Given :

• Three coins tossed 200 times.

• The number of times 2 heads came up is 72

To find :

The probability of 2 heads coming up

Solution :

Step 1 of 3 :

Find total number of possible outcomes

Here it is given that three coins tossed 200 times.

So total number of possible outcomes = 200

Step 2 of 3 :

Find total number of possible outcomes for the event

Let A be the event that of 2 heads coming up

The number of times 2 heads came up is 72

So total number of possible outcomes for the event A is 72

Step 3 of 3 :

Find the probability

Hence the required probability

= P(A)

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

$\displaystyle \sf{ = \frac{72}{200} }$

$\displaystyle \sf{ = \frac{9}{25} }$

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