# Download WALT: find the mean, median and mode from a frequency table

Survey

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Corecursion wikipedia, lookup

Chirp spectrum wikipedia, lookup

Heterodyne wikipedia, lookup

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 modd
a
moyen terme
número durchschnitt
airmheán
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.
0
8
,6
−1
,
1
4
, 16
1
2
Question 3...
Given that 6.3 × 2.7 = 17.01 work out:
63 × 27
b) 630 × 2.7
a)
Question 4...
Write 1.25 × 10−7 as a regular
number.
Question 5...
2
3
Work out the value of 8
Question 6...
Expand 𝑥 + 3 2𝑥 + 3 .
Question 7...
Factorise 𝑥 2 + 5𝑥 + 6.
Question 8...
Factorise 𝑥 2 − 64.
Question 9...
Change the subject of this
formula to 𝑦.
4𝑦 + 𝑝
𝑥=
2
Question 10...
Write down all the possible integer
values of 𝑥 in these inequalities.
−3 < 𝑥 ≤ 5
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 20year 11S-Ma2 class reunion!
Many of you have careers, spouses and childrenwhich 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…
```
Related documents