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⇒ 11 * 7 = 72 ⇒ 11 – 7 ⇒ 121 – 49 = 72 ⇒ 14 * 7 = 147 ⇒ 14 – 7 ⇒ 196 – 49 = 147 ⇒ 17 * 9 = 17 – 9 ⇒ 289 – 81 = 208 Therefore 17 * 9 = 208
For the frequency distribution of X number of grammatical mistakes per line is as follows.
X: 0 ...
For a normal distribution, which of the following is true?
For an experiment we have the following data set: n = 4, ∑ X = a,∑ Y = 10,∑ XY = 21,∑ X2 = 30,∑ Y2 = 30 the correlati...
The value of a and b so that the following is probability mass function
X: 0 �...
The prices (in ₹) of different yarns (per kg) in two consecutive years are as follows.
If r and R denote correlation and multiple correlation coefficient for the data set for X1, X2 and X3 . Which option is correct?
Identify, from the following, the moment used as a measure of skewness?
Fundamental principles of design of experiment are
(I) Randomization
(II) Replication
(III) Local control
Which option is correct?
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...
The standard deviation of Y is double of standard deviation of X. The correlation coefficient between X and Y is 0.5. The acme angle between lines of r...
