HP 10B - Manual (Page 93)

4.5 (1+) 1.00 Enters first time.
4 d + ) 2.00 Enters second time.
2 g±) 3.00 Enters third time.
3.25 d±] 4.00 Enters fourth time.
3.5 d3 5.00 Enters fifth time.
3.75 d±] 6.00 Enters sbah time.
■(M) 3.50 Calculates the mean.
■EiSa 0.85 Calculates the sample
.standard deviation.
iRCp7 77.13 Displays Ev^.
m iRCD4 6.00 Displays ;i.
Ql(^ 3.59 Calculates the root mean
square.
1 ________ 1 The standard deviations calculated bv lliS.v,Sy| and
QOOOOO
oooooo
CZDOOOO
a o v a o
• aacDo
ooooa
o o o o o
^ ..............
■IS.r.Syl HlSWAPI are the sample standard deviations. Thev
assume that the data is a sampling of a larger, complete set
of data.
ir the data constitutes the entire population, the true popula-
tion standard deviations can be calculated by pressing
M\<rx,a-y\ and W\tTx,<ry\ HSWAPI.
Example 2 . The coach has four new players on the team with heights of
193,182,177, and 185 centimeters and weights of 90,81,83, and 77 kilo­
grams. Find the mean and population standard deviation of both their
heights and weights, then sum they-data.
Keys:
liCL^
193 OSM]
Display: Description:
0.00 Clears .statistical
registers.
90(13 1.00 Enters height and weight
of player 1 .
81 d3 2.00 Enters heiglU and weight
of player 2 .
90 7: Statistical Calculations