Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 0796774)
Calculate the values to the nearest tenth.

1.  16, 8, 24, 63, 30, 38, 77, and 77.
Write the range:  _________

2.  86, 67, 41, 100, 16, 67, 61, 41, and 20.
Write the range:  _________

3.  5.8, -26.1, 20.7, -2, 18.3, 35.5, -21.1, -21.1, -40.8, and 14.2.
Write the range:  _________

4.  -3.6, -18.9, -30.8, -33.3, 16.2, -33.3, -42.5, -27.8, 13, and 7.5.
Write the range:  _________

5.  Given the following grades:
76, 64, 64, 58, 69, 60, 58, 64, 64, 87, 81, 64, 58, 74, 89, 94, 84, 58, 60, 87, and 58.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$78.55 $67.95 HZC $4.53 $75.47
$163.66 $49.45 HDE $11.87 $131.87
$231.60 $154.93 BRB $2.15 $214.62
$273.86 $207.66 CBE $16.03 $229.06
$50.79 $14.73 KIF $0 $25.76
$28.22 $7.90 FLT $0.38 $18.84
$87.78 $7.57 JXW $1.82 $30.32
$122.24 $35.71 VHS $4.03 $50.36
$158.65 $72.51 KFJ $11.44 $114.36
$71.86 $66.44 ZJS $2.14 $71.45
$88.16 $9.33 NMC $3.30 $41.31
$204.05 $165.57 DNM $8.33 $166.55
$181.03 $19.01 OUV $3.98 $56.88
$235.12 $25.49 FGS $3.56 $35.64

  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:
47.64, 76.97, 158.83, 33.77, 63.25, 174.49, 178.3, 42.88, 143.41, and 36.97.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

8.  Given the following prices of used homes (in thousands):
59.6
87.5
169
143.1
195.5
109.6
169.2
117.9
141.9
72.1
90.2
111
153.6
166.4
100.9
64.3
101.9
105.9
111.3
114.4
135.1
112.3
115.2
142
125.5
119.9
109.7
87.7
198.2
108
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

9.  Given the following:
121, 154, 144, 144, 123, 131, 72, 169, 134, 73, 191, 63, 69, 82, 123, 70, 163, 97, 131, and 179.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

10.  Given the following annual mutual fund returns:
23.03
17
14.86
16.9
36.05
51.82
2.43
16.01
8.95
67.59
40.96
10.66
27.69
8.08
22.79
18.5
6.78
45.14
72.67
31.24
17.33
-43.38
5.37
5.78
42.77
9.15
10.29
24.07
4.95
16.35
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

11.  Given the following:
54.8, 63.1, 20.3, 66, 18.1, 54.7, 67.7, 32, 52, and 14.7.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following prices of used cars:
$7,300
$28,400
$6,700
$34,700
$14,100
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________