Could someone lend a hand please

[coral rose]

a) look at the histogram, for
example for the first bar
frequency = 3, so x = 3, do the
same for y and z
b) calculate the overall area of
the 3 bars, then divide the
result by x+y+z

[sullen mica]

a) x=3 y=5 z=1 b)6.7 ?

[coral rose]

wait sry my explanation is incorrect

a) x = area of 1st bar
y = area of 2nd bar
z = area of 3rd bar
b) (4+6)/2 = 5
(6+8)/2 = 7
(8+12)/2 = 10
mean = (5x+7y+10z)/(x+y+z)

[sullen mica]

x=5 y=7 z=10 5+7+10 = 22/3?

[coral rose]

no

[sullen mica]

oh

uh

[sullen mica]

i dont knoiw what this means

[coral rose]

which one?

[sullen mica]

bro all of im completely lost