Download Probability Distributions: The probability distribution of a random

Probability Distributions:
The probability distribution of a random variable gives its possible values and associated probabilities. The probability distribution can be displayed in a table or histogram. Example: APGAR Scores for newborns. 0
1
2
3
4
5
6
7
8
9
10
.001
.006
.007
.008
.012
.020
.038
.099
.319
.437
.053
Doctors have determined that an APGAR score from 7 to 10 indicates a healthy baby. What's the probability that a randomly selected baby is healthy? Expected Value: Found by multiplying each possible value of the variable by its probability and then summing over all possible outcomes. Example: APGAR Scores for newborns. 0
1
2
3
4
5
6
7
8
9
10
.001
.006
.007
.008
.012
.020
.038
.099
.319
.437
.053
1
Example: Roulette
A roulette wheel contains 2 green slots, 18 red slots, and 18 black slots. If a player bets $1 on Red what is the expected outcome? 2