Question

The probability distribution for arandom variable x is given in the table.Х- 10-505101520Probability.20.15.05.1.25.1.15Find the probability that x = -10

Answer 1

To find the probability of a distribution given in table form we have to look for the x we are searching and see its corresponding probability in the table.

In this case we notice that to x=-10 corresponds the probability .20, therefore:

$P(x=-10)=0.20$