Question

S the interquartile range of this data?

6


8


9


20

Box-and whisker plot titled Number of Coins in Collection with five-number summary from left to right 7, 16, 30, 36, 38.

Answer 1

here is my answers, it is just my test....

Answer 2

We have been given the 5-number summary of a box plot that represents Coins in Collection. The five-number summary from left to right is 7, 16, 30, 36, 38.

We are asked to find the inter-quartile range of the given data.

We know that interquartile range is difference of upper quartile and lower quartile.

We know that the 5-point summary represents the lower data point, lower quartile, median, upper quartile and upper data point respectively.

We can see from our given 5 point-summary that lower quartile is 16 and upper quartile is 36.

`\text{Interquartile range}=\text{Upper quartile}-\text{Lower quartile}`

`\text{Interquartile range}=36-16`

`\text{Interquartile range}=20`

Therefore, the interquartile range of the given data is 20 and last option is the correct choice.