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Real-Life Math

You are a veterinary pathologist tracking cancer tumor rates for dogs. You're looking at two groups of dogs: beagles and boxers. You know that boxers are more prone to this type of tumor, but you want to see if your results demonstrate that.

To do this, you're looking at samples on slides through a microscope. You stain the slides with silver, then count how many cells are lined with silver. When you've counted the number of silver-stained cells, you divide that number by 100 to determine the AgNOR score. For example, if you counted 342 cells lined with silver, the AgNOR score would be 3.42.

"A slide with an AgNOR score over 2.7 has a very good chance of being cancer," says Dr. Paige Carmichael. She's a veterinary pathologist.

Here are the results from your experiment. Do the average scores indicate cancer? Are boxers more prone to cancer than beagles?

BoxersBeagles
274174
176394
365245
292123
139299
244120
293249
304293
204304
394105
275

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