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Cumulative frequency Cumulative frequency graphCumulative frequency table Cumulative frequency graph
Measuring the middle of a distributionThe mean The mode The arithmetic average obtained by adding all the scores and dividing by the total number of scores The score which occurs most frequently
Middle of a distributionThe median When placed in order from smallest to largest, the middle score
Find mean mode and median of…b) 13, 12, 15, 13, 18, 14, 16, 15, 15, 17
Percentiles In a cumulative frequency graph….The 25th percentile is called the lower quartile The 50th percentile is the middle value (median value) The 75th percentile is called the upper quartile
The interquartile rangeInterquartile range = upper quartile – lower quartile
Box and Whisker Plots A 5 figure visual display of a data setThe minimum value The lower quartile The median The upper quartile The maximum value
Box and whisker plots
C. D. Toliver AP Statistics
Grade 10 Mathematics Data handling.
IB Math Studies – Topic 6 Statistics.
Vocabulary for Box and Whisker Plots. Box and Whisker Plot: A diagram that summarizes data using the median, the upper and lowers quartiles, and the extreme.
BOX PLOTS/QUARTILES. QUARTILES: 3 points in a set of data that separate the set into 4 equal parts. Lower Quartile: Q1 (The median for the lower half.
BOX AND WHISKER PLOT Nicole Castro Sebastian Rivera Alyssa Frye George Moerler.
Quartiles & Extremes (displayed in a Box-and-Whisker Plot) Lower Extreme Lower Quartile Median Upper Quartile Upper Extreme Back.
CHAPTER 39 Cumulative Frequency. Cumulative Frequency Tables The cumulative frequency is the running total of the frequency up to the end of each class.
SECTION 1-7: ANALYZING AND DISPLAYING DATA Goal: Use statistical measures and data displays to represent data.
Materials Reminders. Get out your agenda if you see your name below. You need to come to my room tomorrow. Period 2Period 7.
Warm Up – Find the mean, median & mode of each set. Data Set I Data Set II.
Table of Contents 1. Standard Deviation
Data Analysis Mean, Median, Mode and Box and Whisker.
Percentiles and Box – and – Whisker Plots Measures of central tendency show us the spread of data. Mean and standard deviation are useful with every day.
D ATA A NALYSIS Histogram Second Generation Third Generation First Generation.
Do Now Find the mean, median, mode, and range of each data set and then state which measure of central tendency best represents the data. 1)2, 3, 3, 3,
7.7 Statistics and Statistical Graphs. Learning Targets Students should be able to… Use measures of central tendency and measures of dispersion to describe.
Quantitative data. mean median mode range average add all of the numbers and divide by the number of numbers you have the middle number when the numbers.
Box and Whisker Plots Measures of Central Tendency.
Mean: The AVERAGE values of a set of numbers. The mean is found by ADDING all of the values, then DIVIDING by the number of values in the set of data.
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