, 08.11.2019 16:31, kiyomi58

# Agroup of students were given a spelling test. the table shows their marks...

Agroup of students were given a spelling test. the table shows their marks.
mark 6,7,8,9,10 frequency 5,4,7,10,4
work out the range of the marks,
how many students are in the group
work out the mean mark of the group

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