Question

The probability distribution of successful free throws for a practice set is given below. Find the expected number of successes for one set.

Answer 1

Expectation E(X) = \(\sum x p(x)\)
so, just multiply 'n' and probability of n good free throws for each entry!

Answer 2

E(X) = 0*(3/20)+ ... + 3 (1/2) = ... ?

Answer 3

0 + ... + 3/2

Answer 4

include the 2 missing terms too :P

Answer 5

1(3/20)+2(1/5)?

Answer 6

yes!
0+3/20+2/5+3/2
is your expectation

Answer 7

2.05 ... thanks(:

Answer 8

welcome ^_^