Question

A.) You have collected data about amylase production and want to show that the majority of data points are a certain distance from the mean. Which type of error bar should you use?

	a) Range
	b) Standard deviation
	c) Standard error
	d) Confidence intervals
	e) Any of the above will work.

B.) Which of the following is true?

	a) You will not need to display range error bars when the entire population has been sampled.
	b) You will not need to display standard deviation error bars when the entire population has been sampled.
	c) You will not need to display confidence intervals error bars when the entire population has been sampled.
	d) b and c.
	e) all of the above.

Answer 1

A) In a data, majority of the data points are at a certain distance from the mean. In this scenario, standard deviation error bars can be used to show the dispersion of data points. So, the answer for this question is option b (standard deviation).

B) While representing the data of entire population, to display the range, standard deviation error bars and confidence interval error bars are usually employed. So, the answer for this question is option a.