- #1

Deathfish

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## Homework Statement

x = 0, P(x) = 0.4

x = 1, P(x) = 0.1

x = 2, P(x) = 0.1

x = 3, P(x) = 0.1

x = 4, P(x) = 0.3

If P(x)=k(5-x) for x = 0,1,2,3,4, find value of constant k

## The Attempt at a Solution

0.4 = k(5-0)

0.1 = k(5-1)

0.1 = k(5-2)

0.1 = k(5-3)

0.3 = k(5-4)

5k+4k+3k+2k+k=1

15k=1

k = 1/15