Question

If the probability of success during a single event of a geometric experiment is 0.03, what is the probability of success by the 13th event?

Answer 1

Well, would the probability of success of the 13th event be different from the 1st event if the success rate 0.03 (3%) every event?

Answer 2

i guess so because the answer choices are

A. 34.7%
B. 32.7%
C. 28.5%
D. 30.6%

Answer 3

You want to calculate P(X = 1), P(X = 2), etc etc until P(X = 13)

You could use the geometpdf function 13 times to get those individual probabilities, but a much better way is to use the geometcdf function.

Answer 4

Ok I'm at the geometcdf function, do i put 0.03 in p and 13 in x?

Answer 5

yes

Answer 6

Ok i got 32.7%

Answer 7

me too

Answer 8

thankss!(:

Answer 9

np