the marks obtained by 12 students in a monthly
test are 1 1, 19,13,18,21,9,5,20,17 16,21&7
Find :
Find the mean of their of the marks.
Find the mean of their of the marks when
each
student marks
is
increased
by 3.
Answers
Answered by
7
Answer:
=11+19+13+18+21+9+5+20+17+16+21+7/12
=177/12
=14.75
2: =14+22+16+21+24+12+8+23+20+19+24+10/12
=213/12
=17.75
Answered by
1
Answer:
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