Question

Consider the following data:x-2-1 0 1P(X=x) 0.10.10.20.2Step 4 of 5: Find the value of P(X < 2). Round your answer to one decimal place.20.4

Answer 1

STEP - BY - STEP EXPLANATION

What to find?

P(X < 2)

Given:

$P(X<2)=P(X=-2)+P(X=-1)+P(X=0)+P(X=1)$

From the given table;

P(X=-2) = 0.1

P(X=-1)=0.1

P(X=0)=0.2

P(X=1)=0.2

Substitute the values into the formula above and simplify.

$P(X<2)=0.1+0.1+0.2+0.2$$=0.6$

Hence, P(X < 2)=0.6

ANSWER

0.6