A group of students were given a spelling test. The table shows their marks.
Mark
mark:
6,7,8,9,10
frequency:
5,4,7,10,5
how many student are in tge group?
work out the mean mark of the group

i will u if u answer my question in math

a

step-by-step explanation:

the denominator cannot be the same as one of the factors.

8 denominator times 2 denominator = 16

and 7 numerator time 11 = 77

77/16= 77/16 ( they cannot be further simplified)

range =5

step-by-step explanation:

to find the range, we take the largest value and subtract the smallest value.

the largest value is 5

the smallest value is 0

the range is 5-0   =5

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.