Easy 1,2,7,8,there possible may be more
You have to find the average so add all of them up and divide by the number of numbers which in your case is 20. If you like my answer please mark me as brainliest
Answer:

Step-by-step explanation:
P(2 heads) = P(first flip = head)*P(second flip = head)
=>
= 
P(1 head) = P(first flip = head)*P(second flip = tail) + P(first flip = tail)*P(second flip = head)
= 
P(no heads) = P(first flip = tail)*P(second flip = tail)
= 
E(winning) =
= 
= 
Answer:
131%
Step-by-step explanation:
17:13
17 ÷ 13 = 1.3076923076923 = 130.76923076923%
Answer:
Step-by-step explanation:
10^0=1
10^-3 = 1/10^3
4.0=4
so : 1.72×10^0/4.0×10^-3 = (1.72× 10^3)/4 =430
scientific notation is : 4.30× 10^2