Answer:
102
Step-by-step explanation:
We have the mean (m) 128.5 and the standard deviation (sd) 8.2, we must calculate the value of z for each one and determine whether or not it is an outlier:
z = (x - m) / sd
In the first case x = 148:
z = (148 - 128.5) /8.2
z = 2.37
In the second case x = 102:
z = (102 - 128.5) /8.2
z = -3.23
In the first case x = 152:
z = (152 - 128.5) /8.2
z = 2.86
The value of this is usually between -3 and 3, therefore when x is 102 it goes outside the range of the value of z, which means that this is the outlier.
Less than
2/8=1/4
1/4 < 1/2
Answer:
a) x=7
b) x=4
c) x= 1/9
I hope this helps! Do you need more help?
n would equal <em>-33</em>.
<em>n=-33</em>
N x 2 = 12 + 5n
2n - 5n = 12
-3n = 12
3n = -12
n = -4
