Dukes science quiz scores are 99,91,60,94,and 95 . Describe the effect of the outlier on the mean and median
2 answers:
Solution:
we are given that
Dukes science quiz scores are 99,91,60,94,and 95 .
we have been asked to describe the effect of the outlier on the mean and median.
Mean of the given data
Mean of the given data
Median of the given data after arranging in the ascending order 60,91,94,95,99 is 94.
The outlier is 60.
The outlier is decreasing the value of Mean by
The outlier is decreasing the value of Median by
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Answer:
10
Step-by-step explanation:
If there is a direct relation between two variables x and y then it can be represented as
y = kx ,
where y is dependent variable
x is independent variable
k is constant of variation
_____________________________
First condition
y = 400
x = r
using y = kx then relationship will be
400 = kr
finding k here
k = 400/r
Second condition
y = r
x = 4
using y = kx then relationship will be
r = 4k
finding k
k = r/4
since in both condition equation is same
thus, value of k will also be same
thus,
400/r = r/4
=> 400*4 = r*r
=> 1600 = r^2
Thus, 40 is the value of r
k = r/4 = 40/4 = 10
Thus, constant of variation is 10 which is correct choice.
To cross validate
k = 400/r = 400/40 = 10