Question

Looking at the graph above, the data was collected from an experiment on a small group of people.

Which choice below could have been an error that led to this data?
A) A different-aged individual was measured at each temperature.
B) This experiment was completed on a random group of 40-year olds.
C) The water level used in this experiment was the same for all individuals.
D) Each breathing rate of the individuals was measured with two different devices.

Answer 1

The answer was A) A different-aged individual was measured at each temperature.

Step-by-step explanation:

Here's why: When an experiment like this is completed, factors such as age need to be controlled. It is possible that adults were used at the lower temperatures and children, who naturally have higher breathing rates, were used at the higher temperatures.

Answer 2

B

Step-by-step explanation:

Some of the random individuals could be healthier than others, some could naturally just breath more or some could have health problems.