Jahna Stats Ch 1-2

Statistics is the science of conducting studies to

• solve a system of equations

• hypothesize, experiment, and form conclusions

• collect, organize, summarize, analyze, and draw conclusions form data

• monitor, study, and report on a subject

Tags

CCSS.6.SP.B.5A

What level of measurement classifies data into mutually exclusive categories in which no order or ranking can be imposed on the data?

• nominal

• ordinal

• interval

• ratio

Tags

CCSS.HSS.ID.A.4

A person's hair color would be an example of a quantitative variable.

• True

• False

If you were told that all students from one randomly selected class at SFSC were questioned for a poll about study habits, this would be an example of _____.

• random sampling

• systematic sampling

• stratified sampling

• cluster sampling

Tags

CCSS.HSS.IC.B.3

An advertisement for a motorcycle states that it is 15% more powerful. This is an example of _____.

• changing the subject

• detached statistics

• suspect samples

• ambiguous averages

Which of the following pairs of class limits would be appropriate for grouping the numbers 14, 17, 12, and 19?

• 11-15 and 15-19

• 12-14 and 17-19

• 12-14 and 15-19

• 12-15 and 16-19

Tags

CCSS.HSN.Q.A.1

Thirty students recorded the colors of their eyes, choosing from the colors brown, blue, green, hazel, and black. This data can be appropriately summarized in a(n) __________.

• open-ended distribution

• categorical frequency distribution

• grouped frequency distribution

• upper boundary

Tags

CCSS.6.SP.B.5A

An ogive is also called a cumulative frequency graph.

• True

• False

Which type of graph represents the data by using vertical bars of various heights to indicate frequencies?

• ogive

• frequency polygon

• histogram

• cumulative frequency

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

When making a Pareto chart, data should be arranged ______ according to frequency.

• from smallest to largest

• with increasing time

• from largest to smallest

• clockwise