Hoemwork 3.2 Question 6
When you hit “Mode” on your calculator make sure it looks like this:
If for any reason different things are highlighted change it so that it matches the above picture.
Enter the data values for Ethan into L1 and for Drew into L2.
Go to 1-Var Stats (STAT then “Calc” then “1-Var Stats”) then hit Enter. This defaults to L1 so this info
with be for Ethan.
This is the mean.
Population standard deviation rounded to nearest
tenth = 4.9
This quickest way to find range:
max – min = 24 – 5 = 19
Go to 1-Var Stats (STAT then “Calc” then “1-Var Stats”) then enter L2 (by going to “2nd” and the number
2. The screen will look like this:
This is the mean.
Population standard deviation rounded to nearest
tenth = 7.9
This quickest way to find range:
max – min = 20 – 1 = 19
Since the standard deviation indicated the extent of deviation for each group, Ethan is a more
“consistent” fisherman because on average, his number of catches per day deviates by 3 fish less than
Drew’s average deviation.