| Tag | Value |
|---|---|
| file | Probability_uva-expected-value-658-en_uva-expected-value-658-en |
| name | uva-expected-value-658-en |
| section | Probability/Elementary Probability/Random variables/Expected value |
| type | num |
| solution | 0.5 |
| tolerance | 0 |
| Type | Calculation |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 4.859 |
| p-value | 0.0119 |
In korfball, shot percentage is tracked for each player. If John has a shot percentage of 25%, he scores on one out of every four goal attempts. John has two goal attempts. Below is a table, X is chance variable and the number of hits X on these two goal attempts can take the values 0, 1 or 2.
—— —— —— —— X 0 1 2 probability 0.56 0.38 0.06 —— —— —— ——
What is the expected score on two goal attempts? Round to two decimal places.
The correct answer is: 0.5