Question

tose 3 coins together 50 times. record the appearanceof head and tail on each coin Sepratly.
find Probability of
Getting two head
getting no head
getting only one head​

Answer 1

Answer:

When three coins are tossed together, the total number of outcomes =8

i.e., (HHH,HHT,HTH,THH,TTH,THT,HTT,TTT)

Solution (i):

Let E be the event of getting exactly two heads

Therefore, no. of favorable events, n(E)=3(i.e.,HHT,HTH,THH)

We know that, P(E) =

(Total no.of possible outcomes)

(No.of favorable outcomes)

=

8

3

Solution (ii):

Let F be the event of getting atmost two heads

Therefore, no. of favorable events, n(E)=7(i.e.,HHT,HTH,TTT,THH,TTH,THT,HTT)

We know that, P(F) =

(Total no.of possible outcomes)

(No.of favorable outcomes)

=

8

7

Solution (iii):

Let H be the event of getting at least one head and one tail

Therefore, no. of favorable events, n(H)=6(i.e.,HHT,HTH,THH,TTH,THT,HTT)

We know that, P(H) =

(Total no.of possible outcomes)

(No.of favorable outcomes)

=

8

6

=

4

3

Solution (iv):

Let I be the event of getting no tails

Therefore, no. of favorable events, n(I)=1(i.e.,HHH)

We know that, P(H) =

(Total no.of possible outcomes)

(No.of favorable outcomes)

=

8

1

Answer 2

Answer:

The probability of getting two heads and one tail on tossing three coins at once is equal to 3/8

Exactly 2 heads in 4 Coin Flips

0.38 is the probability of getting exactly 2 Heads in 4 tosses.0.38

Explanation:

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