Please enable JavaScript.
Coggle requires JavaScript to display documents.
Statistics/Data Analysis (Statistical Question (Statistical-How much money…
Statistics/Data Analysis
Measures of range
IQR
1, 5, 9 ,3
Directions
1) Make a box plot with your data
2) find the range of the numbers inside the box
IQR = 5
Range
Range = 122
1, 4, 7, 9, 76, 123
Subtract the smallest number from the largest number
MAD
1, 4 ,5, 8, 12
Directions
2) Subtract the numbers of the data set from the mean
3) Find the mean of the first numbers subtracted from the mean
1) Find the Mean
MAD = 3.2
Statistical Question
Statistical-How much money do chiropractors make on average?
Nonstatistical-How much money does that chiropractor make?
A statistical question is one that can be answered by collecting data and where there will be variability in that data.So to make it non statistical question change the data around and the wording
Central Tendency
Mode
Find the most popular number in a data set
1 ,5 ,9, 9, 4, 5, 9, 6, 6, 2, 9, 9
Mode = 9
Only use when more than half of the data set is the same number
Median
1, 6, 7, 2, 132, 14
Median = 6.5
Find the middle number in the data set
Use when your data set has a lot of variability
Mean
1, 6, 9 , 14, 3, 5
Add all the numbers up and divide by the number of numbers there were
Mean= 6.3333333...
Use when there is little variability in your data set
Statistic Display
Box plot
Step 1: Make sure to order your data from least to greatest.
Step 2: Find the median.
Step 3: Make a Box plot
Step 4:Find the least and greatest value
Step 5: Find the Median of the Lower and Upper Quartile
Step 6: plot the Medians of the Box plot
Step 7: Find your Interquartile Range
Dot plot
Step 1: Order your data into a frequency table.
Step 2: Make A number line
Step 3: Add the data
Histograms
Step 1: Put your data into a Frequency table.
Step 2: Make a bar graph
Step 3: Order your data into the graph
Make sure your graph has no gaps between each bar and add the range of numbers at the bottom
