Month

Phone

 

Month

Phone

Expense

 

Expense

 

 

 

 

 

 

 

 

 

 

1.

May

$340

4.

August

$780

2.

June

$175

5.September

$245

3.

July

$450

6.

October

$625

 

 

 

 

 

 

Calculate the mean, median, and standard deviation of the monthly phone bills. Then display the smallest value in the list.

Keys:

Display:

Description:

 

 

 

 

 

 

Displays current SUM list

 

 

 

 

 

 

 

 

 

 

 

 

and SUM menu keys.

@c

Clears current list or gets a

 

 

 

 

 

 

new one.

 

 

 

 

or

 

 

 

 

 

 

 

 

 

 



 

 

 

 

 

 

 

Stores May’s phone bill;

340 I 

 

 

 

 

 

 



shows total.

175 I 

Stores June; updates total.

 

 

 

 

 

 



 

450 I

Stores phone bills for

780 I

July-October and keeps a

245 I

running total.

625 I 

 

 

 

 

 

 

 



 

 

Displays CALC menu.

e



 

 

Calculates mean.

 



 

 

Calculates median.

 



 

 

Calculates standard



10: Running Total and Statistics 129

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