Exercise 5 through 10 refer to Table 15-13 , which gives the home-to-school distance d (rounded to the nearest half-mile) for each of the 27 kindergarten students at Cleansburg Elementary School. Table 15-13 Home-to-school distance Student ID d Student ID d 1362 1.5 3921 5.0 1486 2.0 4355 1.0 1587 1.0 4454 1.5 1877 0.0 4561 1.5 1932 1.5 5482 2.5 1946 0.0 5533 1.5 2103 2.5 5717 8.5 2877 1.0 6307 1.5 2964 0.5 6573 0.5 3491 0.0 8436 3.0 3588 0.5 8592 0.0 3711 1.5 8964 2.0 3780 2.0 9205 0.5 9658 6.0 Using the class intervals given in Exercise 8 , draw a pie chart for the home-to-school distances for the kindergarteners at Cleansburg Elementary School. Give the central angles for each wedge of the pie chart. Round your answer to the nearest degree. 8. Draw a bar graph for the home-to-school distances for the kindergarteners at Cleansburg Elementary School using the following class intervals: Zone A : 1.5 miles or less Zone B : more than 1.5 miles up to and including 2.5 miles Zone C : more than 2.5 miles up to and including 3.5 miles Zone D : more than 3.5 miles
Exercise 5 through 10 refer to Table 15-13 , which gives the home-to-school distance d (rounded to the nearest half-mile) for each of the 27 kindergarten students at Cleansburg Elementary School. Table 15-13 Home-to-school distance Student ID d Student ID d 1362 1.5 3921 5.0 1486 2.0 4355 1.0 1587 1.0 4454 1.5 1877 0.0 4561 1.5 1932 1.5 5482 2.5 1946 0.0 5533 1.5 2103 2.5 5717 8.5 2877 1.0 6307 1.5 2964 0.5 6573 0.5 3491 0.0 8436 3.0 3588 0.5 8592 0.0 3711 1.5 8964 2.0 3780 2.0 9205 0.5 9658 6.0 Using the class intervals given in Exercise 8 , draw a pie chart for the home-to-school distances for the kindergarteners at Cleansburg Elementary School. Give the central angles for each wedge of the pie chart. Round your answer to the nearest degree. 8. Draw a bar graph for the home-to-school distances for the kindergarteners at Cleansburg Elementary School using the following class intervals: Zone A : 1.5 miles or less Zone B : more than 1.5 miles up to and including 2.5 miles Zone C : more than 2.5 miles up to and including 3.5 miles Zone D : more than 3.5 miles
Solution Summary: The author explains the pie chart for home-to-school distances. Each wedge represents a category with the size of the wedge proportional to the relative frequency.
Exercise 5 through 10 refer to Table 15-13, which gives the home-to-school distance d (rounded to the nearest half-mile) for each of the 27 kindergarten students at Cleansburg Elementary School.
Table 15-13
Home-to-school distance
Student ID
d
Student ID
d
1362
1.5
3921
5.0
1486
2.0
4355
1.0
1587
1.0
4454
1.5
1877
0.0
4561
1.5
1932
1.5
5482
2.5
1946
0.0
5533
1.5
2103
2.5
5717
8.5
2877
1.0
6307
1.5
2964
0.5
6573
0.5
3491
0.0
8436
3.0
3588
0.5
8592
0.0
3711
1.5
8964
2.0
3780
2.0
9205
0.5
9658
6.0
Using the class intervals given in Exercise 8, draw a pie chart for the home-to-school distances for the kindergarteners at Cleansburg Elementary School. Give the central angles for each wedge of the pie chart. Round your answer to the nearest degree.
8. Draw a bar graph for the home-to-school distances for the kindergarteners at Cleansburg Elementary School using the following class intervals:
Zone A: 1.5 miles or less
Zone B: more than 1.5 miles up to and including 2.5 miles
Zone C: more than 2.5 miles up to and including 3.5 miles
Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a random variable representing annual return for the Vanguard Balanced Index (60% stock and 40% bond). For the past several years, assume the following data. Compute the range for variable y.
X
12
0
36
21
35
23
24
-12
-12
-21
Y
10
-2
26
15
22
18
15
-2
-3
-10
Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a random variable representing annual return for the Vanguard Balanced Index (60% stock and 40% bond). For the past several years, assume the following data. Compute the range for variable x.
X
15
0
37
23
33
25
26
-15
-15
-23
Y
6
-1
28
18
24
17
18
-1
-2
-6
7.16. If the probability density of X is given by
g
kx³
for x>0
f(x) = (1+2x)6
0
10-01,
elsewhere
trolls inf
(
2X
density of the random variable Y =
where k is an appropriate constant, find the probability
1+2X
distribution of Y, and thus determine the value of k.
7
Identify the
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