# Question Video: Comparing Internet Searches for Cats and Dogs Using Box Plots Mathematics • 7th Grade

It has long been thought that cats are the most popular Internet pet. To test this theory, data were collected by a well-known search engine on the number of searches for cat-related videos and dog-related videos each month over a five-year period. The results are represented in the box plots. Use the information illustrated in the box plots to determine whether or not cats are indeed the premier Internet pet.

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### Video Transcript

It has long been thought that cats are the most popular Internet pet. To test this theory, data were collected by a well-known search engine on the number of searches for cat-related videos and dog-related videos each month over a five-year period. The results are represented in the box plots below. Use the information illustrated in the box plots to determine whether or not cats are indeed the premier Internet pet.

So in order to decide whether or not cats are more popular than dogs in Internet searches, we want to know on average which pet has the highest number of searches. So the measure of average, or we can also call it the central tendency, that we have available from the box plots is the median. And this is shown by the line inside each of our boxes. And we can see that, in this case, so our example here, the median lines are horizontal since the variable values are on the vertical axis.

And what we can see by reading across from the median line to the vertical axis is the value of the medians. We can see that the median for cats is approximately 15.5. And we need to remember that this is millions of searches. Whereas for dogs, we can see that it’s approximately 19 million searches. Since, on average, the number of searches for dogs per month was higher, we can conclude that the data disproves the theory. Because, in fact, in online searches for videos of them, dogs are on average the most popular pet, not cats.