LO: I can calculate the median, mode and mean of
a set of data
This weekend there were 10 couples left on Strictly Come
Dancing. Your task is to use the information given to work out the
median, mode and mean score for each couple.
Once you have done, you must decide which of the three
averages you want to use and create a league table using that
data (highest score first).
Singer Lulu and her dance partner Brendan Cole Boxer
McFly’s Harry Judd and his dance partner Aliona Vilani
Jason Donovan and his dance partner Kristina Rihanoff
Audley Harrison and his dance partner Natalie Lowe
Actress Anita Dobson and her dance partner Robin Windsor
Presenter Alex Jones and her dance partner James Jordan
Footballer Robbie Savage and his dance partner Ola Jordan
Waterloo Road’s Chelsee Healey
and her dance partner Pasha Kovalev
Astrologer Russell Grant and his dance partner Flavia Cacace
Actress and Singer Holly Valance
and her dance partner Artem Chigvintsev
Once you have finished, you must decide which of the three averages you want to use (either median or mode or
mean) and create a league table using that data (highest score first). Write down why you chose to use that average.
Extension: The range for the two sets of scores below is 3. Can you work out why?
Can you now go back and work out the range for each of the above scores?
LO: I can find the missing data when given the
median, mode or mean of a set of data
Last weekend there were 11 couples on Strictly Come Dancing.
Your task is to use the information given to work out the missing
score for each couple.
Once you have done, you must then use your newly found
information to calculate the mean, median and mode for each
couple.
The mean is 5.5
The mode is 8
The median is 5.5
The mean is 7.75
The mean is 8.75
The median is 3.5
The range is 3
The total score was 31
The mean is 7.25
The range is 1 and this was the highest scoring couple
TASK A: Below you can see 2 different ways of scoring 29. Find as many ways as you can of scoring 29. Work out the
mean, median and mode for each. Why do/don’t the averages change? What would you consider to be the best way
of scoring 29?
TASK B: Find a set of 7 numbers which have a mean, median and mode of 7.
Too easy? Try to find 7 different sets of 7 numbers which all have a mean, median and mode of 7.