EM-2996
Measures of spread
E Math · Secondary 4 · Hard · Measures of spread
A grouped frequency table for the lengths of 50 metal rods is shown.
Length (cm):
Frequency:
Using the midpoints, find the standard deviation of the lengths, correct to 2 decimal places.
Length (cm):
Frequency:
Using the midpoints, find the standard deviation of the lengths, correct to 2 decimal places.
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