Question

A loaded die has a 50% chance of rolling 2 and a 10% of rolling each of the other numbers, 1, 3, 4, 5, 6. If the random variable X is defined as the number of dots on the top face of the die, what is the mean of its probability distribution?

Answer 1

@rational

Answer 2

@rational

Answer 3

```
1 : 0.1
2 : 0.5
3 : 0.1
4 : 0.1
5 : 0.1
6 : 0.1
```

Answer 4

multiply the values with the corresponding probabilities,
then add up

Answer 5

2.9

Answer 6

Correct!

Answer 7

:D