EDU821
nDetermine the variance of the scores (S2)
13
3.5
8.199999999999999
—>> 12.57
What is the formula for the standard deviation of the scores
sd = √s2
sd = ∑(x-x ̅)2
sd = (s2)2
—>> sd =( x Ì… )2
Parameters describe the numerical propertis of
sample
—>> population
estimates
statistics
nCalculate the standard dviation of the scores presented in the table
3.81
—>> 3.55
M3.00
3.25
List the values in column (x-x Ì…)2
j-25, -16, -1, 0, 1, 9, 36
m5, 4, 1, 0, -1, -3, -6
—>> m25, 16, 1, 0, 1, 9, 36
n15, 14, 10, 0, 11, 7, 4
The science which specalisize in organizing and summarizing generated information for decision making is _______________
informatics
information and communication
—>> statistics
cybernetics
nFind the value of ∑(x-x ̅)2
—>> 88
70
158
92
nWhat is the value of x Ì… in the table
9
—>> 10
8.5
7.2
The most stable and generally applied measure of central tendency is
