Correct option is B
The mean is 4.
Step 1: Expand the summation
Step 2: Solve for the sum of xᵢ
Step 3: Calculate the mean
The mean is 4.
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Question
For n = 50, Σ50(xi-3) = 50, what is the mean?
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- 1)The deviation of individual values from their average is called as:
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Similar Questions
- 1)The deviation of individual values from their average is called as:
- 2)
The proportion of habitable space from which insect counts are taken is called as
- 3)Which among the following statements is incorrect?
- 4)The correlation coefficient is a unit-free measure which ranges from -
- 5)The error degree of freedom in Randomized Block Design (RBD) with ‘t’ treatments and ‘r’ replications is calculated by -
- 6)The value arrived by dividing the sum of observations by the total number of observations is called as -
- 7)To testwhen the population standard deviation is known, the appropriate test is:
- 8)If the regression coefficient of Y on X is -1.6 and of X on Y is -0.4, then the correlation coefficient between X and Y will be:
- 9)Type 2nd error is denoted by?
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