The variance of 15 observations is 4. If each observation is increased by 9, the variance of resulting observations is
Tap an option to check your answer.
JNU SSS 2021 Question 52: Descriptive statistics and dispersion
Answer and worked solution
Checking your account…
Descriptive statistics and dispersion has come up 117 times in 6 exams since 2004.
What this question tests
This question is on Measures of dispersion, part of Descriptive statistics and dispersion in Statistics.
How spread out data are: range, variance, standard deviation and relative measures.
TestStop has 39 past-paper questions on this subtopic.
Similar questions from other papers
- The coefficient of variation is a relative measure of variability. It measures the _ to the _.
- If kurtosis is defined as (m₄/σ⁴-3), where m₄ is the 4^(th) order central moment and σ is the standard deviation, then its value is positive for
- If Mode is 11, Mean 8, the difference of the two Quartiles is 8 and the sum of the two Quartiles is 22, then the Coefficient of Skewness will be: A. +0.5 B. -0.5 C.…
- What is the geometric mean of 2, 4 and 8?
- For a positively skewed frequency distribution,.
Question from the JNU SSS 2021 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.