The document discusses calculating measures of central tendency (mean, mode, median) from frequency tables. It provides examples of calculating the mean by finding the total of values from a frequency table and dividing by the total number of values. It also discusses calculating the mode by identifying the item with the highest frequency, and calculating the median by finding the middle value when data is ordered from lowest to highest.

1. Processing Data
Mean (Frequency Table)

2. Starter Work
1. Match the words to their meanings
2. Here are the Frequency table of the Exam Score
a. Find the total of the data on the
Frequency Table.
b. Please make the list of the data

3. Starter Work (Answer)
1. Match the words to their meanings
2. Here are the Frequency table of the Exam Score
a. Find the total of the data on the
Frequency Table.
25
a. Please make the list of the data
13, 13, 14,14,14,14, 15, 15, 15,
15, 15, 16,16, 16, 16, 16, 16, 16,
16, 17, 17, 17, 17, 17, 17

4. To be able to calculate the mean from a frequency table
A frequency table is constructed by arranging collected data values in
ascending order of magnitude with their corresponding frequencies.
To calculate the mean we find the total of the values and divide the total by
the number of values. The number of values is the total frequency. This can be
abbreviated to n.

5. To be able to calculate the mean from a frequency table
Mark Tally Frequency (Mark x Freq)
4
5
6
7
8
9
10
II
II
IIII
IIII
IIII
II
I
2
2
4
5
4
2
1
8
10
24
35
32
18
10
Total 20 137

6. Find the mean of the data on the frequency table
below.
Use your mini
whiteboard !
To be able to calculate the mean from a frequency table

7. Find the mean of the data on the frequency table
below.
Answer
To be able to calculate the mean from a frequency table

8. Find the mean of the data on the frequency table
below.
Use your mini
whiteboard !
To be able to calculate the mean from a frequency table

9. Find the mean of the data on the frequency table
below.
Answer
Goals x Frequency
3 x 7 = 21
5 x 2 = 10
6 x 2 = 12
7 x 3 = 21
10 x1 = 10
To be able to calculate the mean from a frequency table

10. Find the mean of the data on the frequency table
below.
Answer
Awards x Frequency
1
3
8
10
6
28
16
22
To be able to calculate the mean from a frequency table

11. Find the mean of the data on the frequency table
below.
Use your mini
whiteboard !
To be able to calculate the mean from a frequency table

12. To be able to calculate the mean from a frequency table
Starter

13. To be able to calculate the mean from a frequency table
Starter

14. LO : To be able to calculate the mean from a frequency table
To be able to calculate the mode from a frequency table
To be able to calculate the median from a frequency table
Mode is the most common number, in order to find the
mode we need to identify the item in the frequency table
with the highest frequency.

15. LO : To be able to calculate the mean from a frequency table
To be able to calculate the mode from a frequency table
To be able to calculate the median from a frequency table

16. LO : To be able to calculate the mean from a frequency table
To be able to calculate the mode from a frequency table
To be able to calculate the median from a frequency table

17. LO : To be able to calculate the mean from a frequency table
To be able to calculate the mode from a frequency table
To be able to calculate the median from a frequency table
Median from a frequency table is when we find the median
average from a data set which has been organised into a
frequency table.

18. LO : To be able to calculate the mean from a frequency table
To be able to calculate the mode from a frequency table
To be able to calculate the median from a frequency table
Find the Median of this data

19. LO : To be able to calculate the mean from a frequency table
To be able to calculate the mode from a frequency table
To be able to calculate the median from a frequency table
Steps
1. Calculate the cumulative of the frequency 2. Find the position of the Median using formula
3. Find the row that contains the Median 4. Conclude the findings
So the median number of cars = 1

20. LO : To be able to calculate the mean from a frequency table
To be able to calculate the mode from a frequency table
To be able to calculate the median from a frequency table
Find the Median of these data on the frequency table

21. Thank you!