Home › Variance of constants is:
Variance of constants is:
Answer & Solution
Correct answer: A.
1. Variance measures spread around mean.
2. If all values are equal (a constant), there is zero spread.
3. Variance = 0.
_Source: TSICET 2024 PYQ Q.126 (Shift 1, Statistics)_
Related questions
In the rainfall data for 14 Kerala districts during a week of September 2015, the value 89For a set of numbers in arithmetic sequence, which statement about the mean and median is If 25 children are sorted by haemoglobin levels with counts (2, 3, 5, 6, 4, 3, 2) at the lFor 10 values, with the high-income household excluded, the median monthly income is foundThe median of the eleven monthly incomes (with the high-income household included) equals:If one new household with a monthly income of 175 000 rupees joins the same neighbourhood,The monthly incomes of 10 households (in rupees) are 16500, 21700, 18600, 21050, 19500, 17Range of 10, 25, 40, 18, 7: