Which method can be used to find the interquartile range for a set of data? find the difference between the maximum and minimum values. find the difference between the upper and lower quartiles. find the median of the upper half of an ordered data set. find the sum of the maximum and minimum values.

Find the difference between the upper and lower quartiles

Step-by-step explanation:

The INter quartile range is widely used to find out the presence of outliers in any sample

IQR i.e. interquartile range is calcuated as

III quartile-Iquartile

Hence option 2 is right.

Option 1 is wrong because the difference between maximum and minimum values represent the range

Option 3 is wrong since  the median of the upper half of an ordered data set is the third quartile.

Option r is wrong since the sum of the maximum and minimum values

will not give iqr

12*c

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have