A fair coin is flipped eight times. What is the probability of the coin landing heads up exactly 2 times?

50%

Step-by-step explanation:

no matter how many times it is flip you will get heads or tails.

50%

Step-by-step explanation:

two sides 1/2= 50%

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

x

step-by-step explanation: