Question

1. Two coins are tossed simultaneously 400 times and we get 2 heads equals to 180 times.
one head = 148 times and no head - 70 times. I two coins are tossed at trandom, what
is the probability of getting 2 heads. 1 head and 0 heads.​

Answer 1

Step-by-step explanation:

Total number of tosses = 400

Number of times 2 heads appear = 112

Number of times 1 head appears = 160

Number of times 0 head appears = 128

In a random toss of two coins, let E1, E2, E3 be the events of getting 2 heads, 1 head and 0 head, respectively. Then,

(i) P(getting 2 heads) = P(E1) =

(ii) P( getting 1 head) = P(E2) =

(iii) P( getting 0 head) = P(E3) =

Remark: Clearly, when two coins are tossed, the only possible outcomes are E1, E2 and E3 and P(E1) + P(E2) + P(E3) = (0.28 + 0.4 + 0.32) = 1

Answer 2

Answer:

Number of times 2 heads appear = 180 . Number of times 1 head appears = 148 . Number of times 0 head appears = 72. =148400=37100=0.37.