A fourth of the trees are between 14 and Check out this video. Complete the five-number summary by finding the min and the max. And I just realized that I missed this 1. Lower quartile Twenty-five percent of scores fall below the lower quartile. Median The median middle quartile marks the mid-point of the data and is shown by the line that divides the box into two parts. So let’s see, one, two, three, four, five, six, seven, eight.

So that’s my number line. From the given data find the five-number summary and make a box-and-whisker plot. And then up here, we have So if we look at this first bottom half of our numbers essentially, what’s the median of these numbers? So we’ve ordered all our data. Order the data from smallest to largest. We have our box and whisker plot. The median is the mean of the middle two numbers:.

And then a fourth are in this quartile.

Constructing a box plot

The min is the smallest data point, which is 2 5 25 2 5 So if we want the range– and when we think of range in a statistics point of view we’re thinking of the highest data point minus the lowest data point. Now they say there’s only one seven-year-old at the party. Read the given data carefully and determine the five-number summary to make box-and-whisker plots. But to make that a little more tangible, let’s look at some, so I’m feeling, I’m feeling good that this is true, but let’s look a few more examples to make this a little more concrete.


So that’s my number line.

Level 2 These worksheets have exclusive word problems to find the five-number summary, range and inter-quartile range. So both of those 1’s are right over there. Do we have any 6’s? About Us Privacy Policy Terms. Each worksheet has eight problems given. And then our boxes, everything in between, so this is literally the middle half of our numbers. It always important to consider the pattern of the whole distribution of responses in a box plot.

It doesn’t have to be.

So interpretung are all the distances traveled. Find the outliers by computing the quartiles and the inter-quartile range.

So this box-and-whiskers plot tells us that half of the ages of the trees are less than 21 and half are older than Sheet 1 Sheet 2 Sheet 3 Download All.

Well, we have 1, 2, 3, 4, 5, 6, 7, 8 data points. Download the Complete Set KB.

Understanding and interpreting box plots | [email protected]

This is going to be seven. The median is the mean of the middle two numbers:. Math Statistics and probability Summarizing quantitative data Box and whisker plots. A fourth of the trees are between 14 and We could do a scenario where well let’s see, let’s ahswers if I can, I can construct aand where, let’s see, the median is So this gives a pretty good sense of both the median and the spread of our data.

If you’re seeing this message, it means we’re having trouble loading external resources on our website.


Now it should be relatively straightforward to find the middle of our data, the median. And then the median age of a tree in the forest is at Video transcript answegs [Voiceover] So i have a box and whiskers plot showing us the ages of students at a party.

Box and whisker plot: how to construct (video) | Khan Academy

It tells us that everything falls between 8 and 50 years, including 8 years and 50 years. What is the range of tree ages that he surveyed? Each worksheet has three problems. And they of course tell us what the minimum, the minimum is seven.

One seven-year-old at the party. You know this could be, this could be a nine and an So to answer the question, we already did the range. If you’re seeing this message, it means we’re having trouble loading external resources on our website. But in this one over here, we did see that exactly half are over, are older than This is going to be Then we have a And then we have another two.

Creating a box plot odd number of data points.