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Interest = 4644 - 4300 = 344 p = 4300 T = 2 years Simple interest = P × R × T / 100 344 = 4300 × R × 2 / 100 r = 4% Let the principle amount be x. So, interest = 10104 – x T = 5 years r = 4% Simple interest = P × R × T / 100 10104 – x = x × 4 × 5 / 100 10104 × 5 – 5x = x 6x = 50520 X = 8420 The principle amount is Rs. 8420.
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:
