Question
Which of the following dyes is used for colouring Paper
and typewriters?Solution
Triphenyl Dyes contains the paraquinoid moiety as a chromophore and -OH, -NHâ‚‚ as auxochrome. these dyes are not fast to light and washing and hence used for colouring Papers or typewriters.
Statistics is not applicable to ________ observation.
The coefficient of correlation is the _________ of coefficients of regression.
If a discrete random variable X follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20, the value of P(|X-14| < 5) will be:
For the variables X and Y, we collect 4 observations with ∑ X = 10,∑ Y = 14,∑ X2 = 30,∑ Y2 = 54,∑ XY = 31 The regressio...
If mean and median of the distribution are 12 and 21, then the distribution
A physical instructor claims that the mean weight of students in school is greater than 82 kg with standard deviation 20. If a sample of size 81 studen...
For the distribution
X:Â Â Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â Â Â Â Â 0Â Â Â Â Â Â Â Â Â Â Â Â Â 1
P(x):Â Â Â Â Â 0.3Â Â Â Â Â Â ...
For making frequency distribution, the number of classes used depends upon:
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