Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 0256042)
Calculate the values to the nearest tenth.

1.  57, 77, 20, 77, 72, and 20.
Write the range:  _________

2.  54, 30, 30, 33, 4, and 77.
Write the range:  _________

3.  0, 20.6, -2.3, 28.8, -0.2, 39.2, -19.7, -5.1, -26.3, and 0.
Write the range:  _________

4.  9.4, 28.5, -5.5, -32.8, -43.2, 9.4, -8.2, -37.9, -14.7, and 18.9.
Write the range:  _________

5.  Given the following:
113.74, 120.6, 85.64, 149.22, 110.95, 153.23, 149.9, 85.75, 99.25, and 143.84.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.  Given the following annual mutual fund returns:
2.62
21.57
17.64
19.33
14.52
-41.19
20.24
8.67
1.45
15.93
12.07
21.48
11.59
16.93
23.34
0.87
-40.81
11.27
57.06
37.13
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

7.  Given the following prices of used homes (in thousands):
175.8
154.3
118.3
102.9
103
117.2
56.7
101.4
103.5
86.4
119
179.5
118.2
110.3
171.8
122.9
190.9
105.5
71.7
102.3
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

8.  Given the following prices of used cars:
$32,000
$5,900
$10,000
$9,200
$11,100
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

9.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$256.96 $24.48 YWK $17.48 $249.65
$229.23 $9.68 PBK $6.53 $130.58
$100.22 $17.32 KQQ $5.93 $98.75
$30.21 $26.36 WCV $2.67 $29.65
$290.93 $242.29 GUD $5.21 $260.68
$182.24 $94.03 IKO $3.93 $130.93
$143.37 $59.15 CXN $9.73 $138.94
$137.77 $21.38 DAU $4.60 $65.76
$84.54 $8.07 TQD $1.24 $61.97

  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:_________

10.  Given the following:
61, 43, 41, 52, 60, 47, 38, 49, 34, 41, 18, 25, 26, 11, 8, 35, 39, 20, 16, and 60.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

11.  Given the following:
34.3, 42.5, 32.9, 49.3, 81.5, 66, 75.8, 66.3, 51.7, 33.7, 56, 27.5, 42.3, 32.4, 71.2, 66.6, 64.8, 45.5, 67.3, and 27.1.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following grades:
82, 87, 71, 82, 87, 87, 87, 100, 63, 69, 87, 82, 62, 69, 87, 69, 87, 82, 87, 82, 76, and 82.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________