8.b.

The responses of

1307

voters to a survey about the way the media conducted themselves in a recent political campaign are shown in the accompanying Pareto chart. Find the probability of each event listed in parts (a) through (d) below.

How Would You Grade the Media for the Way They Conducted Themselves in the Campaign?

FAorBDC050100150200250300350400450500550600ResponseNumberresponding524316249218

Question content area bottom

Part 1

(a) Randomly selecting a person from the sample who did not give the media an A or a B

The probability is

0.7580.758.

(input integer or a decimal. Round to three decimal places as needed.)

Part 2

(b) Randomly selecting a person from the sample who gave the media a grade better than a D

The probability is

enter your response here.

(Input integer or a decimal. Round to three decimal places as needed.)