Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 0901974)
Calculate the values to the nearest tenth.

1.  98, 51, 30, 73, 47, 68, 36, 23, and 23.
Write the range:  _________

2.  42, 1, 76, 89, 15, 44, 44, and 46.
Write the range:  _________

3.  -11.4, -8, -9, -33, -18, 6.7, -18.5, -11, -11.9, and -11.
Write the range:  _________

4.  15.5, 20.9, -15.6, -15.6, -20, -12, 27, 20.7, 37.7, and 18.5.
Write the range:  _________

5.  Given the following:
99, 78, 39, 121, 55, 110, 104, 38, 92, 82, 52, 119, 87, 70, 52, 36, 59, 35, 121, and 88.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.  Given the following prices of used homes (in thousands):
134.9
174.9
176.7
98.1
160.9
57.1
190.8
150.8
88.4
147.7
156.4
61.7
176.8
103.3
102
123.2
160.7
115
69.5
155.9
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

7.  Given the following prices of used cars:
$8,000
$11,800
$5,400
$11,100
$38,900
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

8.  Given the following grades:
92, 100, 76, 99, 55, 99, 96, 76, 57, 84, 99, 76, 96, and 92.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

9.  Given the following:
52.16, 49.5, 41.59, 62.84, 53.15, 59.4, 41.17, 86.56, 63.35, 72.89, 79.24, 55.13, 84.44, 71.21, 39.56, 54.81, 80.42, 58.95, 80.12, and 88.45.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

10.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$224.70 $44.21 PYO $0 $200.58
$154.24 $152.42 CFL $7.68 $153.65
$69.03 $42.17 CVU $1.38 $68.78
$101.43 $27.76 RFG $5.00 $71.42
$193.14 $4.48 JVT $0 $175.80
$111.71 $62.45 NEV $5.55 $69.35
$20.84 $9.65 XTW $1.81 $20.14
$242 $113.11 OUJ $11.88 $169.76
$273.56 $193.84 FQP $14.49 $241.46
$134.03 $52.38 FNF $1.61 $80.69
$104.97 $28.69 KMS $3.74 $93.42
$17.98 $12.09 EHL $0.49 $12.26

  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:_________

11.  Given the following:
62.9, 64, 68.6, 117.3, 65.8, 116.1, 64.5, 123.1, 76.6, and 61.4.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following annual mutual fund returns:
11.81
15.43
7.94
45.51
15.06
23.63
17.8
40.97
66.89
43.08
5.4
8.08
3.46
21.44
20.89
20.32
1.78
-46.32
6.96
2.42
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________