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August 3, 2015

Homework Help: math check and help

Posted by Tom 81 on Saturday, June 15, 2013 at 11:37pm.

A random sample of the amount paid (in dollars) for taxi fare from downtown to the airport was obtained. (Give your answers correct to two decimal places.)

16 17 22 13 21 23 22 18 13 22 19 20 19 22 16

(a) Use the data to find a point estimate for the mean.
$ 18.87 .

(b) Use the data to find a point estimate for the variance.
$ I have a problem getting variance

(c) Use the data to find a point estimate for the standard deviation.
$ I have a problem getting sd.

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