Answer:
mean = 1.49
median = 1.53
Step-by-step explanation:
Using Excel, the procedure is the following
- Insert data set in a sheet. In my case I used cells A1 to AX1
- Compute mean with AVERAGE formula. In my case, AVERAGE(A1:AX1)
- Compute median with MEDIAN formula. In my case, MEDIAN(A1:AX1)
7.0 is an outlier because all data points are below 2.91
Answer:
2.5 km long after 59 miles
Standard deviation is calculated by
1. calculate mean, m
2. calculate deviation of EACH entry of data set from the mean, i.e.
d=(x-m)
3. calculate mean of square of deviations (d^2)/n to get variance,v
4. take square-root of variance to get standard deviation.
For example,
To find the standard deviation of data set {3,7,8}
1. mean=(3+7+8)/3=6
2. deviations, di={3-6,7-6,8-6}={-3,1,2}
3. squares of deviations, di^2={9,1,4}
4. mean of squares of deviations=(9+1+4)/3=14/3
Standard deviation=sqrt(14/3)=2.16
For the given data set, if you follow the above steps, you would get
sum=400
mean=400/9
variance (mean square of deviations)=8246/81
standard deviation=sqrt(8246/81)=sqrt(8246)/9
Both angles are congruent and since opposite angles of a trapezoid = 180, s and t equal 108.
Answer:
Step-by-step explanation:
