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April 16, 2014

Homework Help: Stats...is this correct?

Posted by Jen on Tuesday, October 18, 2011 at 9:53pm.

A sample of purchases at the local convenience store has resulted in the following sample data, where x = the number of items purchased per customer and f = the number of customers.

x 1 2 3 4 5
f 5 15 8 8 7

1. What does the 15 stand for in the above table?
2. Find the midrange of items purchased.
3. How many items were purchased by the customers in this sample?

1. The 15 indicates that 15 customers each bought 2 items = subtotal of 30 items bought.

2. The midrange of items purchases would be 3.

3. 5+30+24+32+35 = 126 items were purchased by the customers in this sample.

Please tell me if i did this correctly...

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