Question

Find the missing probability in the table

X: 1 2 3 4

P(x): 0.40 0.20 0.15 ?

Answer 1

0.25???

Answer 2

the sum of P(x) must equal to 1

Answer 3

X: 1 2 3 4
P(x): 0.40 0.20 0.15 ?

.40 + .20 + .15 + ? = 1

Answer 4

Omg thnk you so much I get it know thank you so much i was sitting here crying because i didn't get it