Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 0786862)
Calculate the values to the nearest tenth.

1.  22, 69, 3, 47, 85, 41, 12, and 12.
Write the range:  _________

2.  48, 44, 87, 20, and 48.
Write the range:  _________

3.  -5.3, -20.8, -1.6, -18.7, 24.1, -20.8, -17.3, 0.9, 7.1, and -3.1.
Write the range:  _________

4.  18.1, -5, -30.9, -30.2, 21.2, -11.2, -14.2, 18.1, 7.3, and 34.8.
Write the range:  _________

5.  Given the following prices of used cars:
$9,700
$8,200
$12,700
$27,200
$26,900
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.  Given the following annual mutual fund returns:
6.34
23.04
3.8
6.88
1.06
-45.31
-40.1
-45.71
7.21
49.4
19
4.91
-43.26
13.06
24.23
15.19
24.36
22.2
-43.11
20.79
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

7.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$260.80 $133.94 ZDH $11.38 $189.64
$279.75 $101.48 DPK $20.47 $255.93
$143.93 $109.12 ZZS $3.28 $109.32
$86.53 $65.36 DJQ $6.70 $83.77
$97.26 $35.38 GOM $2.55 $42.52
$180.31 $151.54 HYZ $6.12 $152.88
$220.73 $159.46 FND $19.05 $190.46
$261.70 $157.37 GFO $6.86 $228.61
$41.72 $3.41 KCC $0.34 $16.83
$238.88 $143.78 IUT $12.07 $172.46
$163.25 $57.61 ADS $0.77 $77.29

  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:
46, 141, 132, 183, 173, 168, 68, 110, 118, 127, 191, 170, 131, 41, 59, 60, 60, 189, 183, and 54.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

9.  Given the following:
61.68, 138.09, 74.69, 167.04, 185.78, 52.99, 47.91, 125.72, 74.58, 108.77, 113.15, 91.85, 150.93, 55.27, 96.86, 116.2, 168.28, 102.38, 53.52, and 165.11.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

10.  Given the following prices of used homes (in thousands):
90.1
100.2
100.1
103
57.6
168.7
159.4
93.5
57.1
98.2
100.6
100
101.6
102.3
107.8
94.8
90.4
114
188.2
105.7
144.7
110.4
111.9
89.4
111.5
197.5
112.7
117.3
116.7
149
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

11.  Given the following:
66.4, 89.3, 37.2, 41.6, 74.1, 42.2, 85, 81, 66, 65.8, 73.3, 48.9, 53.6, 89.8, 72.4, 38.1, 39.5, 84.2, 85.6, and 70.4.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following grades:
77, 67, 96, 72, 96, 99, 77, 77, 68, 67, 91, 75, 96, 96, 95, 83, 77, 83, 95, 59, 64, 82, 99, and 77.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________