What is the probability of getting tails at least one time, if a fair coin is flipped 3 times​

P(at least one tail) = 7/8

Step-by-step explanation:

If you flip a coin, you have two outcomes- heads or tails. So let's find all the outcomes for flipping three coins.

H = heads.  T = Tails

HHH                         P(what you want) =   number of times it happens        

HHT                                                             Total number of outcomes.

HTH

HTT                          P(at least one tail) =  7  

THH                                                             8

THT

TTH

TTT

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3

part a: 1.08

part b: 27.59