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statistics (graphs (histogram, polly graph, taly, stem graph, bar graph,…
statistics
graphs
histogram
polly graph
taly
stem graph
bar graph
column graph
primary and secondary data
measurements
observations
surveys
simulation
experiment
questions
range
mode
mean
median
frequency
collecting data
questionnaire
census
surveys
census
A sample survey
class invertal
Questionnaire
observations
simulations
experiment