Statistics AMDM

A study at JCHS showed that JCHS students take an average of 3,543 steps per day with a margin of error of ±4 % (at a 95% confidence level).

What does this margin of error mean

• The study is 95% sure that students take within 4% of the 3,543 steps per day

• That the students actually walk and average of 91 to 99 steps per day

• That the number of steps is between 3539 and 3547

• Margarine is 4% less tasty than butter

Mr. Eineker wants to determine the average height of students at Johns Creek High School.  He decides to ask all his students for their height (he teaches Algebra II and AMDM).

Is Mr. Eineker collecting categorical or quantitative data?

• quantitative

• categorical

• systematic

• random

What is the median of the data?

• 200

• 100

• 90

• 140

What is the word in statistics for any characteristic or attribute of a person, place, or thing?

• variable

• descriptive statistic

• inferential statistic

• parameter

How is the data distributed in this histogram?

• Symmetrically

• Skewed Right

• Skewed Left

What is the interquartile range?

• 4

• 6

• 2

• 8

Which car club has the higher median?

• Cruisers

• Car Hops

What is the minimum value?

• 64

• 58

• 66

• 60

What value is the lower quartile?

• 66

• 58

• 60

• 64

What data value is the upper quartile?

• 64

• 62

• 66

• 58