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The following details are available with regard to a data set: Sx = 33, Sx2 = 199,
n = 6. If each observation in the data set is multiplied by 2 then the standard deviation of the resulting values will be equal to:
(a) (35/3)1/2
(b) 35/3
(c) 3
(d) 25
**Weegy:** Answer : (a)
Reason : Original data set:
Sx = 33 Sx2 = 199 N = 6
After modification:
Sx = 2 ´ 33 = 66
Sx2 = 4 ´ 199 = 796
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Asked 2/8/2013 11:08:55 PM

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The following data pertains to three commodities :-
Commodity Price in 2004 (Rs. /kg) Price in 1994 (Rs. /kg)
Rice
Wheat
Pulses 11.50
13.50
26 9.50
8.50
20
The base year is 1994. The unweighted aggregates price index for the year 2004 is approximately-
(a) 115.62
(b) 125.45
(c) 134.21
(d) 250.55
**Weegy:** The following data pertains to three commodities :- Commodity Price in 2004 (Rs. /kg) Price in 1994 (Rs. /kg) Rice Wheat Pulses 11.50 13.50 26 9.50 8.50 20 The base year is 1994. [ The unweighted aggregates price index for the year 2004 is approximately- (c) 134.21 ] (More)

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Asked 2/8/2013 11:40:42 PM

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