Answer:
[tex]P(x \le -3) =0.30[/tex]
Step-by-step explanation:
Given
The attached probability distribution of x
Required
Find [tex]P(x \le -3)[/tex]
To do this, we consider all values of x less than or equal to-3.
So, we have:
[tex]P(x \le -3) =P(x=-5) + P(x = -3)[/tex]
From the table:
[tex]P(x=-5) = 0.17[/tex]
[tex]P(x = -3) = 0.13[/tex]
So, the equation becomes
[tex]P(x \le -3) =P(x=-5) + P(x = -3)[/tex]
[tex]P(x \le -3) =0.17 + 0.13[/tex]
[tex]P(x \le -3) =0.30[/tex]
