Business Statistics And Research Methods - Study Mode
[#846] Which of the following is true where data is highly positively skewed?
Correct Answer
(C) The mean will tend to overstate the average
[#847] Two regression lines coincide if
Correct Answer
(D) $$r = pm 1$$
[#848] The law of statistics, which says 'Moderately large number of items chosen at random from a large group possess the characteristics of the large group', is referred to as:
Correct Answer
(B) The Law of Statistical Regularity
[#849] Correlation coefficient by least square method is obtained by the following formula.
Correct Answer
(B) $$sqrt {1 - frac{{{S^2}y}}{{{sigma ^2}y}}} $$
[#850] Find the median from the following data. Gross Profit (Percent of Sales) Number of Companies 0-10 21 10-20 32 20-30 43 30-40 34 40-50 23
Correct Answer
(B) 25.46