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Option (a): 102 X 3 + 6 ÷ 5 - 12 = 102 X 3 + 1.2 - 12 = 306 + 1.2 - 12 = 295.2 Option (b): 102 X 3 ÷ 6 – 5 + 12 = 51 – 5 + 12 = 46 + 12 = 58 Option (c): 102 + 3 ÷ 6 X 5 - 12 = 102 + 0.5 X 5 - 12 = 102 + 2.5 - 12 = 92.5 Option (d): 102 ÷ 3 - 6 X 5 + 12 = 34 - 6 X 5 + 12 = 34 - 30 + 12 = 16
For the study purpose, the mean of the observations is 148 gm and standard deviation is 17.4 gm. Approximately, the coefficient of variation equals to:
Following two statements are related to regression coefficient
(I) Independent of the change of origin
(II) Independent of the change of scale
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For the recorded observation, the coefficient of variation is 0.2 and the variance is 16. The arithmetic mean is:
If the random sample of size n is drawn without replacement from a finite population of size N, the correction factor for standard error of sample mean...
Two data set of size 9 and 6 have standard deviation 3 and 4 respectively and arithmetic means 3 and 3 respectively. The standard deviation of combined...
The arithmetic mean of the following frequency distribution of number of accidents X on week working days is:
X:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â...
The grouped data for the observation are as follows.
Class :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2-4Â Â Â Â Â Â Â Â 4-6Â Â Â Â Â Â Â Â Â 6-8...
Five persons A, B, C, D and E occupy seats in a row at random. The probability that A and B sit next to each other is:
