What are pie charts such as the one above typically used to show?

a. a causal relationship between variables, often expressed as negative numbers
b. a negative relationship between variables, often expressed as absolute values
c. a component's share of the total amount, usually expressed as a percentage
d. a pattern of similar data values, usually expressed in a shortened form

Which of the following starements is true based on the above information?

Explain the difference between an independent and dependent sample. choose the correct answer below. a. in an independent sample, the individuals are chosen without replacement; in a dependent sample, the individuals are chosen with replacement. b. in a dependent sample, one would use a two-tailed hypothesis test; in an independent sample, one would use a one-tail hypothesis test. c. a sample is independent when an individual selected for one sample does not dictate which individual is to be in the second sample. a sample is dependent when an individual selected for one sample dictates which individual is to be in the second sample. d. a sample is independent when an individual selected for one sample dictates which individual is to be in the second sample. a sample is dependent when an individual selected for one sample does not dictate which individual is to be in the second sample. independent samples are often referred to as matched-pairs samples.

The chart shows four articles read by the students in a science class