Let, number of book and number of pen sold by shopkeeper be 28x and 15x respectively. Number of pencil sold by shopkeeper = 16/5 times; 15x = 48x So, 28x times; 40 + 15x times; 20 + 48x times; 10 = 20900 rArr; 1120x + 300x + 480x = 20900 rArr; 1900x = 20900 x = 11 Number of pen sold by shopkeeper = 15x = 165
Which of the following options is INCORRECT?
For the ANOVA which option is wro1ng?
For the variables X and Y, we collect 4 observations with ∑ X = 10,∑ Y = 14,∑ X2 = 30,∑ Y2 = 54,∑ XY = 31 The regressio...
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For a group of 100 students, the mean and standard deviation of scores were found to be 30 and 5 respectively. Later on it was discovered that the scor...
The arithmetic mean of the following frequency distribution of number of members in family in the society
X: ...
Recession in industry is associated with the:
A dice was thrown 400 times and 'six' resulted 80 times. The data is used to justify the hypothesis of an unbiased dice at 95% confidence. With referen...
