Suppose we want to study the errors found in the performance of a simple task. we ask a
large number of judges to report the number of people seen entering a major department
store in one morning. some judges will miss some people and some will count others
twice, so we don’t expect everyone to agree. suppose we find that the mean number of
shoppers reported is 975 with a standard deviation of 15. assume that the distribution of
counts is normal.
75% of the counts would be less than – 3 pts.
95% of the counts would be between and – 3 pts.

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

Identify the statement below as either descriptive or inferential statistics. upper a certain website sold an average of 117 books per day last week. is the statement an example of descriptive or inferential statistics? a. it is an example of descriptive statistics because it uses a sample to make a claim about a population. b. it is an example of inferential statistics because it uses a sample to make a claim about a population. c. it is an example of inferential statistics because it summarizes the information in a sample. d. it is an example of descriptive statistics because it summarizes the information in a sample.

Which equation is represented by the graph below?