Understanding Histograms and Bar Graphs

Hello team. <break time="0.5s" /> Quick survey. Raise your hand if you have a dog. <break time="1.0s" /> Now raise your hand

if you have a cat. If we count ten dogs and six cats. We can draw tall bars for dogs. <break time="0.5s" />

And shorter bars for cats. That is the Bar Graph we know and love.

You might think the tall bar always wins. It seems easy right? <break time="0.5s" /> But not so fast.

Here is the problem. What if we want to compare our class to Mr Zalter's class? <break time="0.5s" /> His class is huge

with thirty students. We only have twenty. Ten students here is fifty percent of the class. <break time="0.5s" />

But ten students in the big class is much less. This is called Relative Frequency.

Shake it off. We are switching gears. <break time="0.5s" /> Now I want to know. How many minutes