Mathematics · Statistics - Measures of Central Tendency
If two variables x and y are related linearly as y = a + bx for n paired observations, where a and b are constants, and &bar;x and &bar;y are the Arithmetic Means (AM) of x and y respectively, then which of the following relations is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1&bar;y = na + b &bar;x
- 2&bar;y = a + b &bar;x✓
- 3∑y = na + bx
- 4∑y = a + b ∑x
Correct answer
&bar;y = a + b &bar;x
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