SOLUTION: The publisher of a popular financial periodical has decided to undertake a campaign in an effort to new subscribers. Market research analysts in this company believe that there is

Question 1112159: The publisher of a popular financial periodical has decided to undertake a campaign in an effort to new subscribers. Market research analysts in this company believe that there is a 1 in 4 chance that the increase in the number of new subscriptions resulting from this campaign will be between 3000 and 5000. What is the probability that the increase in the number of new subscriptions resulting from this campaign will be less than 3000 and more than 5000?
Answer by ikleyn(52778)   (Show Source): You can put this solution on YOUR website!
.
The publisher of a popular financial periodical has decided to undertake a campaign in an effort to new subscribers.
Market research analysts in this company believe that there is a 1 in 4 chance that the increase in the number of new subscriptions
resulting from this campaign will be between 3000 and 5000. What is the probability
that the increase in the number of new subscriptions resulting from this campaign will be less than 3000 OR more than 5000?
~~~~~~~~~~~~~~~~~~~~

                First, the question was formulated INCORRECTLY.
                The correct formulation of the question is THIS:

What is the probability that the increase in the number of new subscriptions resulting from this campaign will be 
less than 3000  OR more than 5000?

Solution

According to the condition,

    there is a 0.25 = 25% probability that the increase in the number of new subscriptions resulting from this campaign will be between 3000 and 5000

Then the problem asks

      What is the probability that the increase in the number of new subscriptions resulting from this campaign will be less than 3000  OR more than 5000?

The answer is that the probability under the question is the COMPLEMENT to that 25% mentioned above, i.e. 75%.

-------------
Solved.

RELATED QUESTIONS
Historically, the publisher of Golf Illustrated has found that 62% of its subscribers... (answered by stanbon)

A small magazine publisher wants to determine the best combination of two possible... (answered by solver91311)

A publisher is planning to produce a new textbook. The fixed costs are $40 an the... (answered by josmiceli)

An advertising company designs a campaign to introduce a new product to a metropolitan... (answered by Boreal)

A telephone directory has 743 pages and an average of 380 entries on each page. Find and... (answered by Boreal)

Qn7) A company finds that its daily sales begin to fall after the end of an advertising... (answered by ikleyn)

Corporate Downsizing.- In an effort to cut costs, a corporation has decided to lay off 5... (answered by josmiceli)

Solve the problem. Williamston Daily is a new daily newspaper. When they first started (answered by RAY100)

A monthly teen magazine has $20,000 subscribers when it charges $12 per annual... (answered by ikleyn)