1.4 simple &amp; weighted averages

# 1.4 simple &amp; weighted averages - 1.4 Simple...

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1.4 Simple & Weighted Averages

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Simple Average : Items of Number Total Values all of Sum Average Simple = Used when each value has the same importance or occurs the same number of times
cars 15.67 Ex #1 : There are 6 sales people at Rusty Ford. The number of new cars sold last month by each salesperson was: 15 23 4 19 15 18 What was the average number of sales per Salesperson? Average Simple = 6 94 = 6 18 15 19 4 23 15 + + + + +

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Weighted Average : Used when values have different relative importance or when some values occur more often than others. Weights all of Sum Value) (Weight of Sum Average Weighted × =
20 139.75 = Average Weighted = 20 16.00 21.00 102.75 + + = 2 3 15 8.00) (2 7.00) (3 6.85) (15 + + × + × + × \$6.99/hr Ex #2 : The 20 employees at the Quickie Burger earn \$6.85/hr, \$7.00/hr or \$8.00/hr. Find the mean hourly wage, if 15 employees earn \$6.85/hr, 3 employees earn \$7.00/hr and 2 employees earn \$8.00/hr

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Last week at Jim’s Burger Shack the 5 waitresses worked 15.5, 13.75, 18.5, 21.25 and 22.75 hours respectively. If you are trying to calculate the average amount of hours that the waitresses worked, do you want to calculate… 50% A.
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1.4 simple &amp; weighted averages - 1.4 Simple...

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