Question

1. The coefficient of variation is the ratio of the standard deviation divided by the ______________.

2. Descriptive summary measures (characteristics of data) calculated from a sample of data are called ________________.

3. If you have an even number of observations in your data set, the positioning point formula (n+1) / 2 will identify the EXACT location of the median?

True

False

Answer 1

1.the coefficient of variation is the ratio of the standard deviation divided by the mean.

[% ]

2.descriptive summary measures are calculated from a sample of data are called Descriptive statistics.

[ the data set is quantitative in nature. Descriptive statistics are used to give simple summary of the data sample.]

3. The statement is false.

[ in case of even no of observations , we find out the n/2 th obs and (n+1)/2 th obs.

then the formula used for calculating median is:-

(1/2)* [n/2 th obs + (n+1)/2 th obs] ]

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