Question

The following stem-and-leaf diagram gives the distances (in thousands of
miles) driven during the past year by a sample of 15 drivers.
0 3 6 9
1 2 8 5 1 0 5
2 5 1 6
3 8
4 1
5
6 2
(a) (1 point) Rank the data on a single line.
(b) (1 point) Compute the mode.
(c) (2 points) Compute the first and third quartiles.
(d) (1 point) Compute the interquartile range.
(e) (2 points) Compute the lower and upper inner fences.
(f) (3 points) Compute the 83rd percentile.

Answer 1

(a) (1 point) Rank the data on a single line.

3
6
9
10
11
12
15
15
18
21
25
26
38
41
62

(b) (1 point) Compute the mode.

Mode is 15

(c) (2 points) Compute the first and third quartiles.

First Quartile:10.50

Third Quartile:25.50

(d) (1 point) Compute the interquartile range

15

(e) (2 points) Compute the lower and upper inner fences.

lower fences	-12
upper fences	48

f) (3 points) Compute the 83rd percentile.

33.44

Formula =PERCENTILE(A2:A16,0.83)

Formula Ref: