Question

I need 2 to 6

Answer 1

Solution2:

random sampling that is selecting subjects that all members of a population have an equal and independent chance of being selected.

random samples tend to be representative of the population,so we can draw better conclusions about it

Solution3:

mean is sensitive to more extreme values called as outliers.median is not affected by extreme values.

median is the best measure as it is not affected by outliers.

Solution4:

histogram is best for continuous numerical variable.

ex :payment times

Solution5:

boxplot is best for continuous numerical variable.

we get five number summary from boxplot

Solution6:

Bar chart: A vertical or horizontal rectangle represents the frequency for each category

Height can be frequency, relative frequency, or percent frequency.