Question

the responses of 1001 adults in a certain region to a survey question about the story of britons vote to leave the european union are shown in the accompanying pareto chart. find the probability of each event listed in parts (a) through (d) below.

(a) randomly selecting an adult who thinks the story is somewhat important
the probability is 0.319
(type an integer or a decimal. round to three decimal places as needed.)

(b) randomly selecting an adult who thinks the story is not at all important
the probability is 0.139
(type an integer or a decimal. round to three decimal places as needed.)

(c) randomly selecting an adult who thinks the story is not too important or not at all important
the probability is 0.340
(type an integer or a decimal. round to three decimal places as needed.)

(d) randomly selecting an adult who thinks the story is extremely important or very important
the probability is
(type an integer or a decimal. round to three decimal places as needed.)

Explanation:

Identify the total sample size and relevant categories

Using the Empirical Probability knowledge point

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Apply the addition rule for mutually exclusive events

Using the Addition Rule for Probability and Mutually Exclusive Events knowledge points

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Calculate the final decimal probability

Using the Empirical Probability knowledge point

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Answer:

(d) Randomly selecting an adult who thinks the story is extremely important or very important

The probability is <blank>0.325</blank>