Answer:
0.55
Step-by-step explanation:
Given
See attachment for table
Required
[tex]P(x \ge 10)[/tex]
To do this, we consider rows where x is either 10 or greater than 10
i.e. 10, 11 and 12
So:
[tex]P(x \ge 10) = P(10) + P(11) + P(12)[/tex]
Using values from the table, we have:
[tex]P(x \ge 10) = 0.20 + 0.25 + 0.10[/tex]
[tex]P(x \ge 10) = 0.55[/tex]
