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प्रश्न
Choose the correct alternative:
y = 5 – 2.8x and x = 3 – 0.5 y be the regression lines, then the value of byx is
पर्याय
– 0.5
– 2.8
0.5
– 2
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उत्तर
– 2
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संबंधित प्रश्न
Identify the regression equations of X on Y and Y on X from the following equations :
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| X | 35 | 54 | 80 | 95 | 73 | 73 | 35 | 91 | 83 | 81 |
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From the data of 20 pairs of observations on X and Y, following results are obtained.
`barx` = 199, `bary` = 94,
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bxy is the slope of regression line of y on x
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The equations of the two lines of regression are 6x + y − 31 = 0 and 3x + 2y – 26 = 0. Identify the regression lines
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If `bar"X"` = 40, `bar"Y"` = 6, σx = 10, σy = 1.5 and r = 0.9 for the two sets of data X and Y, then the regression line of X on Y will be:
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The management of a large furniture store would like to determine sales (in thousands of ₹) (X) on a given day on the basis of number of people (Y) that visited the store on that day. The necessary records were kept, and a random sample of ten days was selected for the study. The summary results were as follows:
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