Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 0813871)
Calculate the values to the nearest tenth.

1.  50, 13, 67, 13, and 73.
Write the range:  _________

2.  74, 2, 45, 76, 25, 17, 45, 95, and 35.
Write the range:  _________

3.  -20.1, -12, 6.6, 5.7, 29.1, -33.8, -32.2, -20.1, -36.3, and 2.9.
Write the range:  _________

4.  8.6, 6.3, -24.6, -5.8, -35.2, -14.7, -14.7, -18.7, -19.2, and 9.5.
Write the range:  _________

5.  Given the following grades:
80, 50, 66, 77, 66, 63, 70, 66, 96, 92, 100, 77, 56, 66, 97, 66, 92, 50, 87, 77, 77, and 77.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.  Given the following prices of used cars:
$12,500
$5,100
$14,600
$7,100
$10,500
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

7.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$277.87 $110.92 QKT $10.53 $150.36
$107.06 $73.93 FDS $0 $90.86
$191.05 $38.05 CHP $6.39 $91.32
$261.36 $41.80 DIR $17.43 $249.02
$50 $14.88 RXQ $1.32 $32.99
$187.31 $10.26 TAY $1.11 $12.31
$39.01 $3.66 CNO $2.55 $36.47
$171.81 $121.77 YKE $5.71 $142.69
$128.53 $102.36 NRP $3.07 $102.48

  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:_________

8.  Given the following:
71.13, 101.89, 97.91, 102.83, 78.05, 74.61, 101.99, 77.85, 67.32, 96.26, 70.91, 99.73, 100.81, 62.87, 67.47, 70.15, 102.64, 76.34, 81.28, and 63.62.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

9.  Given the following:
201, 171, 83, 96, 206, 223, 180, 197, 90, 232, 116, 239, 172, 150, 117, 85, 92, 137, 141, and 64.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

10.  Given the following prices of used homes (in thousands):
105.8
114.6
178.9
52.3
105.5
161.9
116.9
63.5
110.6
68.1
120.1
106.6
109.9
167.5
165.8
105.5
144
83.5
153.5
198.3
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

11.  Given the following:
81.9, 138, 53.6, 163.9, 162.8, 114.7, 99.7, 154.3, 124, and 125.5.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following annual mutual fund returns:
3.15
-49.47
19.55
-49.17
-46.58
4.91
5.21
24.12
-43.81
24.88
6.4
23.71
16.12
3.6
3.82
9.82
-48.91
6.31
19.65
-40.94
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________