Answer:
a.51
b.131.5
d.131.5
w.131.5
x.51
y.131,5
z.51
don't know the rest
Step-by-step explanation:
y - 0 = 5(x-4)
y = 5x-20
5x - y = 20 Standard Form
Dot plots are used for continuous, quantitative, univariate data. They can be also used for finding outliers, compare distributions, locate the central tendency of your data, etc…
The midpoint of 85 and 90 is 87
It decreases by 0.5
The original mean was 5.5
The new mean is 5