Statistics Assignment

Statistics Assignment
Student’s Name
Institution Affiliation

Part 1
1. Computation of the mean, standard deviation, median, Q1 and Q3, min and max for the
data.
The results are indicated in the table below
Mean 9.60
Standard Deviation 3.04
Median 9.40
Q1 7.00
Q3 12.54
Maximum 14.63
Minimum 3.59
2. Group the data
Spend per customer in Café
£
Frequency(f
)
3-6 5
6-9 16
9-12 15
12-15 14

3. Using this Grouped data to:
i. Compute mean
Spend per customer in
Café £
Frequency(f) Mid-point(x) f*x
3-6 5 4.5 22.5
6-9 16 7.5 120
9-12 15 10.5 157.5
12-15 14 13.5 189
Sum 50 489
Mean=∑ f ∗x
∑ f
9.78
ii. Construction histogram
3-6 6-9 9-12 12-15
0
2
4
6
8
10
12
14
16
18
Histogram of Spend per customer in Café £
Spend per customer in Café £
Frequency