The interquartile range of a data set is the ? of the ? quartile and the ? quartile.

and........

In a box-and-whisker plot, one whisker represents about ?percent of the data.

can u tell me the answer please. i can't find it.

PLEASE, PLEASE HELP ME with this problem.

http://www.mathsisfun.com/data/quartiles.html

The part of the whisker box that represents the interquartile range is the Q1 and Q3, so the box part

To find the interquartile range of a data set, you first need to understand what the quartiles are.

1. Start by arranging the data set in ascending order from lowest to highest.

2. The first quartile (Q1) represents the value below which 25% of the data falls. To find Q1, calculate 25% of the total number of data points. If the result is a whole number, take the value at that position in the data set. If it is a decimal, round up to the nearest whole number and take the value at that position.

3. The third quartile (Q3) represents the value below which 75% of the data falls. To find Q3, calculate 75% of the total number of data points. If the result is a whole number, take the value at that position in the data set. If it is a decimal, round up to the nearest whole number and take the value at that position.

4. The interquartile range (IQR) is calculated as the difference between Q3 and Q1.

Now, let's move on to the second question about box-and-whisker plots.

In a box-and-whisker plot, the whiskers represent the minimum and maximum values of the data set, excluding any outliers. The box in the middle of the plot represents the interquartile range (IQR) discussed earlier.

The length of each whisker can vary depending on the specific type of box-and-whisker plot used. However, in many common box-and-whisker plots, one whisker represents approximately 25% (or one-fourth) of the data.

Remember that the length of the whisker is determined by the specific type of box-and-whisker plot and can vary. But in general, one whisker represents about 25% of the data.

fiona