Question

:( confused... Find the missing probability in the table below.

Answer 1

it is 0.15

Answer 2

o.o///

Answer 3

its 0.30

Answer 4

Ok, I see......
we need to find P(X>2) so it is 0.15 + 0.15 = 0.30

Answer 5

:I no worries. could you check this one for me?

Answer 6

All probabilities in a probability distribution must add to 1


So let x = missing probability


This then means that


0.3 + 0.4 + 0.15 + x = 1


0.85 + x = 1


x = 1 - 0.85


x = 0.15


So the missing probability is 0.15


Now we're tasked to find P(X > 2)


P(X > 2) = P(X = 3) + P(X = 4)


P(X > 2) = 0.15 + 0.15


P(X > 2) = 0.3

Answer 7

i think it is 0.35?

Answer 8

P(Orange) + P(Yellow) + P(Brown) = 1


P(Orange) + 0.30 + 0.40 = 1


P(Orange) + 0.70 = 1


P(Orange) = 1-0.70


P(Orange) = 0.30

Answer 9

oh :O gotcha thank you!!!!!

Answer 10

yw

Answer 11

one more just to make sure it is kinda of important ?

Answer 12

sure go ahead

Answer 13

P(Not a 2) + P(selected a 2) = 1


P(Not a 2) + 0.4 = 1


P(Not a 2) = 1-0.4


P(Not a 2) = 0.6

Answer 14

your a life saver :) thanks again!

Answer 15

sure thing