rivka's e-49 III questions:

16) what is the probability of guessing the correct answer to a multiple choice question if there are 5 choices?

p=1/5 because there is only one possible correct answer and 5 is the total of the choices (TPO)!

percent: 1 /5=0.2 0.2x100=20% or 20 out of 100


17)what probability of guessing the correct answer to a true-false question?

p=1/2 because there is only one possible correct answer, either true or false and the 2 is the total of the choices (TPO)!

percent: 1/2=0.5 0.5x100=50% or 50 out of 100


18)what is the probability that your birthday will fall on saturday or sunday?

p=2/7 beacause there are 2 possible days that your birthday will fall on that day and 7 is the total days in a week (TPO)!

percent: 2/7=0.285 0.285x100=28.5% or 28.5 out of 100

my own question:

18) what is the probability that your graduation will fall on monday?

p=1/7 because monday is the only day in a week and it's the only possible day that your graduation will fall and 7 is the total days in a week (TPO)!

percent: 1/7=0.142 0.142x100=14.2% or 14.2 out of 100

im done!!! is this right mr. harbeck!?