HP 17bll+ User Manual page 129

Month
1. May
2. June
3. July
Calculate the mean, median, and standard deviation of the monthly
phone bills. Then display the smallest value in the list.
Keys:

@c

or
 
340
I
175
I
450
I
780 I
245
I
625
I

e


 
Phone
Month
Expense
$340 4. August
$175 5.September
$450 6. October
Display:

















10: Running Total and Statistics 129
Phone
Expense
$780
$245
$625
Description:
Displays current SUM list
and SUM menu keys.
Clears current list or gets a
new one.
Stores May's phone bill;
shows total.
Stores June; updates total.
Stores phone bills for
July-October and keeps a
running total.
Displays CALC menu.
Calculates mean.
Calculates median.
Calculates standard