'Lower quartiles' diaporamas de présentation

Cumulative Frequency Curves

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Box and Whisker Plots

Box and Whisker Plots. This data shows the scores achieved by fifteen students who took a short maths test. The test was marked out of ten. To construct a box and whisker plot, we need five pieces of information. The median. The lower quartile. The upper quartile. The lowest value.

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Box and Whisker Plots and Circle Graphs

Our Lesson. Box and Whisker Plots and Circle Graphs. Warm Up. Find the mean , mode (s), and median for each set of data 90, 92, 94, 91, 90, 94, 95,98 93, 90 and 94, 93 8.0, 9.1, 8.9, 9.0,9.3, 9.4 8.95, none, 9.05 5, 0, 9, 9, 3, 0, 5, 5, 4 4.4 , 5 , 5

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Box

Box. and. Whisker. Plot. Median: the middle of the data, after the numbers have been put into order. Example: 1, 7, 2, 8, 4, 6, 3, 9, 5. 1, 2, 3, 4, 5, 6, 7, 8, 9. Lower Quartile (LQ): median of the lower half of the data set. [1, 2, 3, 4,] 5, 6, 7, 8, 9.

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Measures of Central Tendency And Variation

Measures of Central Tendency And Variation. Measures of Central Tendency. Mean Average The sum of the numbers divided by the number of numbers Represented by x Median Middle number of the ordered numbers from least to greatest Mean of middle two numbers Mode

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Ch 5: Automobile Ownership

Ch 5: Automobile Ownership. 5.3 Graph Frequency Distributions. Why are graphs used so frequently in everyday life?. How can graphs mislead people?. Misleading Graphs. Misleading Graph. Real Graph. Representing Measures of Central Tendency and Dispersion Pictorially.

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