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Lecture 18

PFW 100 Lecture 18: 12.2-12.6


Department
Phycl Ed Fit/Wellness
Course Code
PFW 100
Professor
Zenisek
Lecture
18

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12.2-12.6
measures of central tendency-
average or typical in a situation
mean-
obtain all data and divide by the sum
symbol of summation-
sum of data items
median-
arrange data s --> L
odd = median is middle
even = mean of two middle #s
midrange-
adding the lowest and highest data values and dividing sum by 2
range-
difference of the highest and lowest data
measures of dispersion-
describe spread of data items in a data set
standard deviation-
determine how much data items differ from the mean
symmetric-
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