Chapter 1
Statistics, Data, and Statistical Thinking data factual information (as measurements or statistics) used as a basis for reasoning, discussion, or calculation. statistics the science of data, involving collecting, classifying, summarizing, organi
QUANTITATIVE DATA 1. 2. 3. Dot plots Stem-and-leaf displays Histograms
SAMPLE MEAN
SUMMATION NOTATION Data = cfw_ 1, 1, 2, 3, 5
x =x/n
REL. FREQ.
= freq. / N
MEDIAN Value of the middle number in an ordered set of quantitative data (or the mean of the two
Type equation here .
A and B
Stacking three different ice-cream flavors on a
cone if there are 12 types 12 P 3 (12*11*10)
Order does
matter
A or B
Selecting three book from a stack of 10
10 C 3
A given that B has occurred
If A and B are independent
then P