Question

Gaurish tosses two different coins simultaneously. What is the probabilty that she gets
1.atleast one head
2. One head and one tail

Answer 1

Answer:

the probability of getting at least 1head is 3/4

and the probability of getting 1head and 1 tail is 1/2

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Answer 2

Answer:

1) $\frac{3}{4}$

2) $\frac{1}{2}$

Step-by-step explanation:

Given : Gaurish tosses two different coins simultaneously.

To find : What is the probability that she gets

1. Atleast one head

2. One head and one tail

Solution :

Number of outcomes when two different coins simultaneously,

n={HH,HT,TH,TT}

Total outcome = 4

1) Atleast one head

Favorable outcome is {HH,HT,TH} = 3

Probability is given by,

$\text{Probability}=\frac{\text{Favorable outcome}}{\text{Total outcome}}$

$\text{Probability}=\frac{3}{4}$

2. One head and one tail

Favorable outcome is {HT,TH} = 2

Probability is given by,

$\text{Probability}=\frac{\text{Favorable outcome}}{\text{Total outcome}}$

$\text{Probability}=\frac{2}{4}$

$\text{Probability}=\frac{1}{2}$