Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 1007943)
Calculate the values to the nearest tenth.

1.  5, 24, 24, 52, 60, 13, 13, and 89.
Write the range:  _________

2.  2, 39, 40, 23, 91, 40, 47, and 23.
Write the range:  _________

3.  -12.8, -16.9, 26.7, -12.8, -2.8, -15.1, 20.1, -2.8, 7.3, and -5.1.
Write the range:  _________

4.  12.8, 9.1, -15.6, 28.1, -10.1, -10.1, -20.9, -6.9, -14, and 23.
Write the range:  _________

5.  Given the following:
146, 119, 117, 67, 90, 139, 115, 92, 105, 136, 153, 153, 138, 96, 64, 152, 65, 102, 142, and 94.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$208.07 $5.75 JZS $0.76 $37.93
$180.86 $33.63 EQW $5.13 $85.56
$97.86 $32.86 JGI $1.82 $90.75
$175.73 $94.13 GZY $0 $98.79
$175.13 $7.64 ZMN $10.71 $118.99
$52.25 $18.89 YSL $0 $35.88
$157.70 $54.92 DKW $5.50 $61.06
$190.16 $174.44 PJM $3.62 $181.11
$275.83 $119.78 YLS $16.37 $163.66

  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:_________

7.  Given the following:
95.9, 86.6, 39, 31, 65, 108.4, 33.5, 97.8, 100.8, and 110.5.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

8.  Given the following grades:
63, 64, 64, 64, 57, 96, 66, 90, 66, 82, 64, 75, 98, 78, 63, 63, 90, 78, 96, 78, 61, and 54.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

9.  Given the following prices of used homes (in thousands):
103.9
116.4
175.4
65.8
113.6
94.1
111
54.6
111.1
167.8
115.1
183.7
101.3
102.7
177.4
167.4
179.7
115.1
148.3
113.7
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

10.  Given the following:
57.01, 65.72, 47.84, 28.72, 32.54, 37.11, 34.83, 51.43, 19.14, 69.67, 37.58, 27.41, 39.89, 63.77, 36.96, 71.88, 21.07, 36.54, 65.29, and 19.59.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

11.  Given the following annual mutual fund returns:
6.77
-49.45
-43.03
57.66
-44.34
7.29
-48.18
21.18
21.19
9.96
12.04
-45.96
6.13
8.67
3.6
-44.94
18.88
-43.24
-42.22
9.63
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following prices of used cars:
$12,800
$11,800
$9,800
$14,200
$12,900
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________