Name _____________________________
Date ___________________
Calculating the Range, Variance, and Standard Deviation
(Answer ID # 0230951)
Calculate the values to the nearest tenth.

1.  41, 20, 99, 31, 6, 88, 51, and 41.
Write the range:  _________

2.  85, 31, 5, 98, 73, and 5.
Write the range:  _________

3.  -14, 17.3, 6, -0.5, 41.2, -15, -3.9, -15.3, 7.1, and -15.3.
Write the range:  _________

4.  12.3, -10.3, -8.5, 41, -6.3, 31.1, 41, -46.3, -5.7, and -1.2.
Write the range:  _________

5.  Given the following grades:
51, 69, 81, 78, 77, 92, 95, 51, 95, 67, 92, and 82.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

6.
52 Week
High
52 Week
Low
Stock Dividend
In Dollars
Close
$251.17 $126.64 XNR $8.08 $161.51
$91.48 $49.42 EZQ $5.10 $63.80
$178.60 $77.01 YXI $5.16 $129.07
$5.31 $3.17 MVD $0.52 $5.22
$18.11 $6.85 WXP $1.23 $12.29
$25.98 $11.82 UOL $0 $22.21
$23.03 $20.03 MSP $1.08 $21.55
$220.81 $83.63 TCH $3.94 $131.22
$93.69 $90.71 OWM $0 $90.85
$50.51 $41.03 ENR $4.85 $48.48

  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:_________

7.  Given the following:
56, 59, 56, 39, 50, 22, 28, 51, 52, and 68.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

8.  Given the following prices of used homes (in thousands):
158.4
116.5
101.9
161.5
159.5
109.3
117.8
114.4
165.6
119.7
179.3
145.1
182.3
106.1
75.8
129
173.2
75.3
117
174.3
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

9.  Given the following annual mutual fund returns:
20.83
-47.43
20.62
-45.47
8.3
12.26
24.06
18.16
12.85
5.8
72.84
-46.72
49.63
21.59
1.28
16.06
-42.43
-40.65
-49.83
15.14
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

10.  Given the following:
21.7, 10, 28.4, 14.6, 22.6, 18.8, 1, -2, -9, and 9.3.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

11.  Given the following:
52.87, 132.75, 49.48, 16.86, 33.3, 87.74, 30.89, 121.16, 51.8, and 97.35.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________

12.  Given the following prices of used cars:
$7,000
$6,200
$32,600
$5,200
$9,000
.
Write the range:_________ Write the variance:_________ Write the standard deviation:_________