HP 17BIIPLUS - Page 129

10: Running Total and Statistics 129
Month
Phone
Expense
Month
Phone
Expense
1. May
2. June
3. July
$340
$175
$450
4. August
5.September
6. October
$780
$245
$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
W
or
p s
"
"
"
;:H0L#T8U"
Clears current list or gets a
new one.
340
I
;:H0L$T8U"
:E:198%+(&(("
Stores May’s phone bill;
shows total.
175
I
;:H0L%T8U"
:E:198.#.&(("
Stores June; updates total.
450
I
780
I
245
I
625
I
"
"
"
;:H0L-T8U"
:E:198$K'#.&(("
Stores phone bills for
July-October and keeps a
running total.
e
E
$K'#.&((" Displays CALC menu.
•
0H1<8+%.&*%" Calculates mean.
‘
0HA;1<8%,.&((" Calculates median.
’
#
F:AHO8$%#&.." Calculates standard