a coin is tossed twice at random what is the probability of getting.
1)At least one tail.
2)The same face.
Answers
Step-by-step explanation:
The only way in which at least one head will not occur is if both tosses give tails.
S=HH,HT,TH,TT
The probability of this is the probability of a single tails multiplied by itself.
The probability of this is approximately
2
1
, so the probability of two in a row is
2
1
∗
2
1
=
4
1
If the probability of getting no heads is 14 , the probability of getting at least one head is 1−
4
1
=
4
3
Answer:
Find the amount of stationery to be shown in Income and Expenditure Account of Vinod
Welfare Society:
Particulars 2019 2020
Creditors for stationery
Stock of Stationery
15,000
70,000
60,000
2,00,000
Payment made to creditors during the year Rs.3,00,000. Stationery purchased in cash during
the year was 25% of the total purchase of stationery.