Answer:
a) 
b) 
c) 
d) 
e) 
f) 
Step-by-step explanation:
The mean is the same no matter the size of the sample.
The standard deviation of the sample is the standard deviation of population divided by the square root of the length of the sample.
So:
(a) n = 11
(a) n = 17
(c) n = 40
(d) n = 55
(e) n = 440
(f) n = 110
Answer:
2. Stepford is the least consistent in daily temperatures because its standard deviation is the highest.
Step-by-step explanation:
Standard deviation is the average amount that each data point is from the mean. The lower the standard deviation is, the closer each data point is to the mean; this means it is more consistent if it has a low standard deviation.
Stepford has the highest standard deviation; this means it is the most variable, or least consistent.
Rise/run
count the number of spaces vertically between the two points, then horizontally between them.
Divide Rise by Run.
Example
Rise: 4
run: 3
Slope: 1.33
51/4=12.75.
Jermaine has 12 and 3/4 candy canes
Given that
P(z/2)=89.48%
the value that corresponds to this will be given as follows:
the z-value that corresponds to 89.48% in the z-table is:
1.25
thus
z/2=1.25
hence
z=1.25*2
z=2.50
