WALT: find the mean, median and mode from a frequency table (Grade D/C)Can you guess the English version of these mathematical words?

frecuencia

modd

moyen terme

número durchschnittairmheán

10 Quick Questions

Reviewing Higher Topics

-In Pairs!

Question 1...Write the prime factors of 160.

Question 2...Order the following from smallest to largest.

, , ,

Question 3...Given that work out:

Question 4...Write as a regular number.

Question 5...Work out the value of

Question 6...Expand

Question 7...F

Question 8...F

Question 9...Change the subject of this formula to

Question 10...Write down all the possible integer values of in these inequalities.

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.

It’s the year 2033…

…and how exciting! It’s 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.

Question 1- 3 marks

Question 2- 5 marks

Try it yourself…