Question

13. Two coins are tossed 600 times and we get
two heads : 138 times,
one head : 192 times;
no head : 270times.

When two coins are tossed at random, what is the probability of getting:
1. 2 tails
2.aleast one tail
3.atmost one tail
4.one tail
5.no tail

plz tell​

Answer 1

Answer:

when we toss two coins simultaneously we have 4 results TT,HH,TH,HT

probability of  one head= 1/4

at least one tail=3/4

at most one tail=2/4

exactly two tail=1/4

Answer 2

1. P(getting 2 tails) = $\dfrac{1}{4}$

2. P(getting aleast one tail) = $\dfrac{3}{4}$

3. P(atmost one tail) =$\dfrac{2}{4}$

4. P(getting one tail) =$\dfrac{2}{4}$

5. P(getting no tail) =$\dfrac{1}{4}$

Step-by-step explanation:

when we toss two coins simultaneously.

All possible outcomes are:

TT,HH,TH,HT

Total number of possible outcomes = 4

1. 2 tails

Favourable outcomes is: TT

∴ P(getting 2 tails) = $\dfrac{1}{4}$

2. aleast one tail

Favourable outcomes are: TT,TH,HT

∴ P(getting aleast one tail) = $\dfrac{3}{4}$

3. atmost one tail

∴ P(atmost one tail) =$\dfrac{2}{4}$

4. one tail

Favourable outcomes are: TH,HT

∴ P(getting one tail) =$\dfrac{2}{4}$

5. no tail

Favourable outcomes are: HH

∴ P(getting no tail) =$\dfrac{1}{4}$