1. Geometric Probability Distributions
Just keep trying and soon you will soon succeed

2. What trial do want it to succeed?
Definition
A trial is repeated until a success occurs
The repeated trials are independent of each other
The probability of success is constant for each trial
The probability that the first success will occur on trial number x is:
What trial do want it to succeed?
Probability of success
Probability of failing

3. Examples
From experience, you know that the probability that you will make a sale on any given telephone call is Find the probability that your first sale on any given day will occur on your fourth sales call p= q= x=

4. More…
From experience, you know that the probability that you will make a sale on any given telephone call is Find the probability that your first sale on any given day will occur on your fourth or fifth sales call

5. Using technology… Geometpdf(p,x) 2nd VARS Geometpdf(
Enter p and x separated by commas
Geometpdf(p,x)

6. One more problem part 1
Mr. Snyder makes a free-throw shot about 43.7% of the time. Find the probability that the first basket Mr. Snyder makes is the first or second shot.

7. One more problem part 2
Mr. Snyder makes a free-throw shot about 43.7% of the time. Find the probability that the first basket Mr. Snyder makes is not the first or second shot.