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Chapter 12: Q. 36 (page 805)

A local investment club that meets monthly has 200members ranging in age from 27to81. A cumulative relative frequency graph is shown below. Approximately how many members of the club are more than60 years of age?

(a) 20 (b) 44 (c) 78 (d) 90 (e) 110

Short Answer

Expert verified

The correct answer is option is (b) =44.

Step by step solution

01

 Step 1: Given Information

We have given that a local investment club that meets monthly has 200 members ranging in age from27to81.

02

 Step 2: Simplify

We draw a line at 60years.

Now, dram a horizontal line through the intersection of the vertical line and the orange curve.

Note that the horizontal line intersects y-axisat a cumulative relative frequency of about 78%.

So, cumulative relative frequency of about 78%. We know that 78%of the members are less then 60years and thus

Given as the 200member is:

22%×200=44.

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