The mean heights of the three groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m respectively. Find the mean height of the students

Chuks612

9 years ago

This should be A 1.52

poiuy

9 years ago

The selected answer is wrong:

mean is total addition of the numbers /the amount of numbers.

1.67+1.50+1.4=

4.57/3

=1.52m

REF: man mathematics book2 chapter 16

ugochijoy196

4 years ago

it shouul be A. 1.52m
cos 1.67m + 1.50m + 1.40m = 4.57.
Then 4.57/3 = 1.52m
So my school. Pls review the question.

Emeka569

9 years ago

this question is confusing

faithy9sabi

1 year ago

mean= £f/n
mean = (1.40×14)+(1.50× 16)+( 1.67×20)÷14+16+20
mean= 1.960+2.400+3.340÷50
mean =1.52cm

poiuy

9 years ago

the ans is wrong mine is correct

yongflex20

11 months ago

The answer is correct. this is my solving

oduneyeadedayo

10 years ago

why no correction