Question
What is the empirical relation between mean median and
mode in positively skewed frequency distribution?Solution
In a moderately skewed distribution, the difference between mean and mode is equal to three times the difference between the mean and median-Mean – Mode = 3 (Mean – Median). In a symmetrical frequency curve, the empirical relation states that mean = median = mode. In a positively skewed frequency distribution curve, the relation is mean > median > mode. Negatively skewed frequency distribution shows mean < median < mode.
Which of the following satisfies the time and factor reversal test?
Completely randomized design is based on the principles of _________ and randomization only.
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 a distribution with mean, median, mode and standard deviation 25, 24, 26 and 5 respectively, Karl Pearson's coefficient of skewness equals to:
If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:
28 If r ₁₂ = +0.80, r13 = -0.40 and r23 = -0.56, then the square of multiple correlation coefficient (correct to four decimal places) R2...
If mean and median of the distribution are 12 and 21, then the distribution
For the data set
X: 1 2 3 4 ...
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