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The following enrolment figures for twenty primary schools were collected 934 923 936 931 924 933 933 937 926 923 934 931 929 934 927 927 932 934 927 940
a) Determine the mode.
b) The differences from an assumed mean were
obtained and rearranged as follows: -2 -2 -1 1 2 2 2 4 6 6 7 8 8 9 9 9 9 11 12 15
I. Determine the assumed mean.
II. Use the assumed mean in (b) (i) to find the mean enrolment.