Which one of the following measurement does not divide a set of observations into equal parts ?
Standard deviations
Partition values (quantiles) divide an ordered set of observations into equal parts: quartiles divide it into 4 equal parts, deciles into 10, and percentiles into 100.
Standard deviation is a measure of dispersion — the square root of the mean of squared deviations from the arithmetic mean. It describes the spread of data around the mean, not points that split the data into equal parts.
Hence, the answer is Standard deviations.
Similar Questions
If the standard deviation of population is 9, the population variance is :
The shape of normal curve depends upon :
Which among the following statements is INCORRECT ?
Which of the following value of Karl Pearson’s correlation coefficient indicates strongest relationship ?
Statement I : In any distribution, the median must fall at the 50th percentile.
Statement II : All unimodal distributions are normal.
Standard deviation of 7, 7, 7, 7, 7 is ................... .
Arithmetic mean is the most popularly used average because ............. .
(i) It is based on all observations
(ii) It is least affected by extreme observations
(iii) It is capable of further mathematical treatments
(iv) It is rigidly defined
(v) It possesses sampling stability
If corr(x, y) = 0.70, then the coefficient of determination is ................... .
Which value of correlation coefficient (r) suggests strongest correlation amongst the following ?
Which of the following is not a measure of dispersion ?
Important Questions from Elementary Statistics
In a colony 5 families have 1 child, 7 families have 2 children, 8 families have 3 children and 3 families have 4 children.What is the mode of the number of children.
For which set of numbers do the mean, median and mode all have the same value?
The median of 5, 8, 25, 22, 34, 18 is
Find the mean of first 5 two-digit multiples of 4.
The difference between the upper limit and the lower limit of a class is called :
