Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 0256468)
Calculate the values to the nearest tenth.

1.  55, 35, 41, 54, 61, 35, 26, 86, and 54.
Write the range:  _________

2.  42, 67, 12, 12, 11, 17, 45, and 21.
Write the range:  _________

3.  -31.2, -3, 4.6, -14.1, -26.1, -16.8, -3, 12.9, -22.1, and -16.8.
Write the range:  _________

4.  7.4, -26.3, 14.3, 24.2, 24.2, 14.2, -12.9, -5.5, -7.1, and -25.6.
Write the range:  _________

5.  Given the following prices of used cars:
$14,600
$37,400
$13,500
$8,200
$34,100
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.  Given the following annual mutual fund returns:
0.5
11.01
48.05
9.52
22.97
-48.1
15.07
24.99
17.65
-42.21
6.77
0.98
8.66
21.08
10.86
3.24
20.44
20.69
3.68
4.6
13.78
19.06
-48.14
12.05
17.44
23.86
18.18
24.33
8.54
-45.01
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

7.  Given the following prices of used homes (in thousands):
116.9
172.4
112.1
116.7
62.5
154.3
105.1
181.7
116.3
50.5
110.7
140.6
118.1
106.9
153.6
102.7
183
51.9
50.5
70
94.9
130
111.6
69
112.8
104.1
165.1
130.5
194
145
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

8.  Given the following grades:
74, 89, 94, 81, 95, 55, 74, 87, 55, 94, 74, 55, 85, 55, 85, 89, 78, and 52.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

9.  Given the following:
75, 77, 136, 164, 194, 94, 189, 74, 80, and 122.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

10.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$20.80 $15.28 PTN $0 $17.47
$171.16 $134.05 IDR $6.78 $169.43
$146 $59.14 JZK $5.66 $141.61
$293.79 $20.36 DHV $0 $149.73
$53.56 $34.69 AJY $0.73 $36.42
$18.45 $2.63 IHB $0.34 $3.81
$16.59 $7.45 WOB $0.36 $12.14
$33.49 $29.73 KDZ $1.99 $33.24
$257.92 $209.66 XSI $18.32 $229.06
$182.88 $47.78 PSO $8.47 $169.34
$199.92 $8.19 GRM $2.99 $99.65

  Find the range, variance, and standard deviation for the closing prices of the given stocks..
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

11.  Given the following:
42.6, 33.9, 29.7, 89.2, 51, 41.2, 22, 40.8, 71, 36.3, 103.5, 78.3, 55.3, 55, 89, 14.9, 67.9, 76, 50.3, and 55.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following:
108.82, 155.12, 65.87, 95.8, 80.02, 177.17, 103.66, 114.86, 77.13, 135.56, 110.73, 102.55, 124.51, 68.32, 189.62, 162.35, 80.94, 100.98, 67.01, and 108.38.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________