Presentation on theme: "WALT: find the mean, median and mode from a frequency table (Grade D/C) Can you guess the English version of these mathematical words? frecuenci a modd."— Presentation transcript:
WALT: find the mean, median and mode from a frequency table (Grade D/C) Can you guess the English version of these mathematical words? frecuenci a modd moyen terme númerodurchschnitt airmheán
This lesson… We are going to review how to analyse data using a frequency table. To succeed: you will know how to find the mean and mode from a grouped frequency table. To excel: you will know how to find the class that contains the median from a grouped frequency table. Challenge: to use a frequency table to present the data in a cumulative frequency diagram.
Its the year 2033…
…and how exciting! Its our 20- year 11S-Ma2 class reunion!
Many of you have careers, spouses and children- which means a lot of data for me!
Being the extremely cool mathematician that I am I decide to analyse some of this data. First, I want to find out the average number of children that my students have had.
Next, I would like to find out the average age of the children.
What makes analysing this data more difficult?
Try it! Each of you has a number 1-3. You must group yourself so you have 1 of each number. Together, try and answer the exam question on finding averages from a frequency table.