Graphs
Name 3 different kinds of graphs
bar, pictograph, line plot, stem and leaf, pie graph
quantitative
numerical data that tells us about something (numbers!)
What are the 3 M's we learned about?
Mean
Median
Mode
what is data?
information we collect that tells us about something
the stem is usually the 10's and the leaf is usually 1's
fair share =
mean
What does median mean?
it is the number in the middle of you data set
where do we see/use data?
weather, traffic patterns, sports data, math, teachers collect data
what kind of graph shows change of time?
line graph
measure of spread
range
What does mode mean?
Mode is the number that you see most often
What is the first thing you should do when you get a data set
put it in order, least to greatest
What graph shows percentages?
pie graph
measure of center
mean
How do you find the mean?
you add up all your data to get the sum, and then divide by how many numbers in the data you added
what are the two different kinds of data we can collect?
quantitative and qualitative
What is a must for almost all graphs to have?
title, key, numbers and labels
what do you see most often
the mode
how do you find the range?
Big number - small number
What are 3 ways you can collect data?
Survey method, observational method, experimental method