Calculation

Excel formula

Summary Statistics - syllabus example | # gomaths.net/4238

Use a spreadsheet to examine the effect on the calculate summary statistics of changing the value of a score.

Syllabus: Mathematics General Course, page 37

Mean: =AVERAGE(B3:B7)

Median: =MEDIAN(B3:B7)

S.D.: =STDEV.P(B3:B7)

where B3:B7 is the range of cells containing numerical data.

Summary Statistics (mean, mode, median) | # gomaths.net/4234

Calculate summary statistics: mean, mode, median

Mean: =AVERAGE(B1:B4)

Mode: =MODE(B1:B4)

Median: =MEDIAN(B1:B4)

where B1:B4 is the range of cells containing numerical data.

Summary Statistics (quartiles) | # gomaths.net/4235

Calculate summary statistics: quartiles

First Quartile: =QUARTILE(B1:B10,1)

Second Quartile: =QUARTILE(B1:B10,2)

Third Quartile: =QUARTILE(B1:B10,3)

where B1:B10 is the range of cells containing numerical data.

Note: Excel calculates quartiles differently to the usual method of splitting the data into 25% lots.