Histograms review mean median mode
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Histograms Review Mean, median, mode. Grade 8 Math. Minds On. Please define histogram: A graph with bars that show frequencies of data organized into intervals; the intervals line up side by side, without gaps, in the number line.

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Histograms Review Mean, median, mode

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Histograms ReviewMean, median, mode

Grade 8 Math


Minds On

  • Please define histogram:

    • A graph with bars that show frequencies of data organized into intervals; the intervals line up side by side, without gaps, in the number line


Please choose the best graph that can represent the data below:

  • When you want to display the height of a class to see how many students in one class meet the height requirement required by attractions in Wonderland

    • A. a bar graph

    • B. a pictograph

    • C. a line graph

    • D. a scatter plot

    • E. a stem-and-leaf plot

    • F. a circle graph

    • G. a Histogram


Please choose the best graph that can represent the data below:

  • When you want to see how much percentage of Tax is spent on Education:

    • A. a bar graph

    • B. a pictograph

    • C. a line graph

    • D. a scatter plot

    • E. a stem-and-leaf plot

    • F. a circle graph

    • G. a Histogram


Please choose the best graph that can represent the data below:

  • When you try to see whether the students in the class prefer hockey or soccer

    • A. a bar graph

    • B. a pictograph

    • C. a line graph

    • D. a scatter plot

    • E. a stem-and-leaf plot

    • F. a circle graph

    • G. a Histogram


Please choose the best graph that can represent the data below:

  • When you want to see the biggest improvement time period of a hockey team

    • A. a bar graph

    • B. a pictograph

    • C. a line graph

    • D. a scatter plot

    • E. a stem-and-leaf plot

    • F. a circle graph

    • G. a Histogram


Please choose the best graph that can represent the data below:

  • When you want to find out the relationship between two values

    • A. a bar graph

    • B. a pictograph

    • C. a line graph

    • D. a scatter plot

    • E. a stem-and-leaf plot

    • F. a circle graph

    • G. a Histogram


Please choose the best graph that can represent the data below:

  • When you want to see how long roughly it takes 32 students to go to school

    • A. a bar graph

    • B. a pictograph

    • C. a line graph

    • D. a scatter plot

    • E. a stem-and-leaf plot

    • F. a circle graph

    • G. a Histogram


Homework Checking

  • Please get your homework out

  • Please find a shoulder partner and exchange your homework

  • Please check homework 4 and 8


Mean, Median and Mode

Grade 8 Math


Definition & Calculation

  • Mean:

  • Median:

  • Mode:

    2, 4, 8, 9, 10, 12, 15, 18, 20, 22

  • Comparing groups of data by:comparing the mean, median & mode


Experiment

  • Textbook reading: page 108

  • Demonstration: volunteer for dropping and recording?

  • Calculation:

    • Mean:

    • Median:

    • Mode:


It’s your turn!

  • Group!

    • One dropper

    • One catcher & recorder

  • Repeat the experiment for 10 times, record the response times down

  • Switch with your partner, repeat for 1o times, record the response times down

  • Calculation:

    • The mean, median and mode (3m)

    • Drop the least measurement & recalculate the 3m

    • Drop the greatest measurement & recalculate the 3m

    • Drop both the least and the greatest & recalculate the 3m


  • Think:

    • Was the mean, the median, or the mode affected more by leaving out the least and greatest measurements? Why?

    • Was the mean, median, or the mode a better indicator of your reaction time?

    • How did your means, medians, and modes help you compare your reaction time with the reaction times of the other students in your class?


    Think:

    • Textbook Page 110 Question 4


    Ticket-Out-Of-The-Door

    • One new thing that I have learned today

    Homework

    • Textbook 109 example 1 & page 110, question 5, 7


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