Consider the table, showing the official mean weight and estimated standard deviation for five U.S. coins. Suppose a
vending machine is designed to reject all coins with weights more than 2 standard deviations above or below the
mean.
Click the icon to view the table.
For each coin, find the range of weights that are acceptable to the vending machine. Complete the table below.
Range of weight (grams)
Coin
Cent
Nickel
Dime
Quarter
Half dollar
n example
(Round to three decimal pla
...
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Data table
Coin
Cent
Nickel
Dime
Quarter
Half dollar
h
Weight (grams) Estimated standard deviation
(grams)
2.500
5.000
2.268
5.670
11.340
0.04
0.09
0.03
0.08
0.13