Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 0473371)
Calculate the values to the nearest tenth.

1.  27, 27, 28, 84, 30, and 91.
Write the range:  _________

2.  31, 92, 17, 2, and 2.
Write the range:  _________

3.  -1, -23, 5.6, -3.1, 24.1, -22.2, 12.9, -3.7, -1.3, and 24.1.
Write the range:  _________

4.  30.8, -9.2, 1.6, -17.5, 27.5, -5.7, -34.5, -15.2, 30.8, and 40.8.
Write the range:  _________

5.  Given the following:
67, 52, 77, 89, 80, 65, 83, 54, 37, and 53.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.  Given the following:
93, 91, 77.5, 67, 79.1, 78.5, 95, 93.8, 74, and 65.5.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

7.  Given the following grades:
95, 72, 72, 85, 85, 76, 58, 62, 77, 60, 66, 67, 59, 67, 81, 67, 85, 66, 98, 83, and 54.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

8.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$119.27 $115.10 CNE $8.33 $119.01
$251.56 $109.02 KDU $11.80 $131.14
$249.45 $183.65 CWT $6.23 $207.59
$203.29 $141.10 XHL $11.16 $159.45
$249.18 $225.08 TYO $21.55 $239.43
$100.19 $18.69 DJV $1.97 $49.30
$248.24 $53.77 BXI $1.75 $174.71
$255.82 $167.55 YXM $7.05 $176.29
$55.78 $46.40 POV $2.42 $48.40
$86.47 $9.85 DLQ $0 $75.27
$209.66 $116.51 QEK $4.77 $119.31
$263.54 $83.91 SWT $3.39 $169.51
$41.57 $11.18 JMF $2.20 $36.60
$266.76 $67.41 LIW $2.69 $89.70

  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:_________

9.  Given the following:
100.18, 129.24, 143.54, 119.37, 63.96, 145.52, 121.11, 143.16, 128.08, 91.4, 43.01, 102.11, 66.42, 141.12, 141.19, 137.39, 45.52, 116.11, 96.71, and 102.2.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

10.  Given the following prices of used cars:
$7,400
$7,400
$32,800
$35,400
$5,100
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

11.  Given the following prices of used homes (in thousands):
107
147.5
100.1
118.8
103.7
186.9
104.9
111.1
115
110.5
114.5
109.5
196.8
135.7
119.2
155.5
194
78.3
95.6
54.9
106.4
192.8
155.9
139.2
149.8
75.5
115.4
120.4
134.1
104.6
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following annual mutual fund returns:
-46.07
6.74
46.76
4.4
53.45
15.42
24.41
14.34
1.44
-48.94
24.3
10.18
15.52
16.36
37.8
12.71
3.11
15.92
-41
-44.3
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________