Question

Please make the stem & leaf only

For Solving Problems 10. Mutual funds are investment services that an individual investor purchases and professionals in turn invest the funds in a variety of stocks. Most mutual funds select to purchase only those stocks that they think are more likely to increase in value than other stocks. Conse- quently, most mutual funds should increase in value more than the average of all stocks. Be- low are the percentage gains of 30 mutual funds for 1998. Make a stem-and-leaf display, a five- number summary, and a boxplot fon these re- turns. Then interpret the results, especially rel- ative to the average of all stocks which increased 20%. The percent increases (or decreases) were: 4,-5, 28, 17, 12, 20, 19, 14, 3, 11, t6, 0, 9, 18022, 25, 15, 13, 14,15, 7, 12, 19, 21, 16 14 9, 17, 13, 19.

Answer 1

First of all we arrange the data in ascending order as :

-5
0
3
4
7
9
9
11
12
12
13
13
14
14
14
15
15
16
16
17
17
18
19
19
19
20
21
22
25
28

Now, we draw the Stem and Leaf Plot for the following data as :

We take Tens digits as the stem values and Ones digits as the leaves.

Key :

0 | -5 means -5

0 | 0 means 0

1 | 5 means 15

2 | 0 means 20