Question 1 Option C. Question 2 (a) Stem and leaf plot.

Question 1
Option C
Question 2
(a) Stem and leaf plot
(b) Option c
Yes, these cowboys certainly lived long lives, as evidenced by the high frequency of leaves
for stems 7, 8, and 9 (i.e., 70-,80-, and 90-year-olds).
Question 3
(a) Min value = 1, Max value = 59
Required number of classes = 5
Class width = (59-1)/5 = 11.6 or 12
1

Class width = 12
(b) Frequency table
(c) Histogram
Option D
(d) Relative frequency histogram
Option B
(e) Mound- shaped symmetrical
(f) Ogive
2

Question 4
Option A
Question 5
(a) Option C
No, because the histogram has one peaks.
(b) Frequency table
3

Question 6
(a) Option B
As 70% data point fall below 20.5.
(b) Option C
(c) Option C
4

(d) Option B
Distribution seems to be skewed left
Option A
Distribution seems to be skewed mound shaped
Option C
Question 7
(a) 1
(b) 9.8%
(c) 650 to 750
5

6