Stats Chapter 2 study quiz

Qualitative data consists of...

• Numbers that can be placed into NON-NUMERICAL categories

• Numbers that can be counted or measured

Tags

CCSS.HSS.ID.B.5

Discrete Data can-

• take on only distinct values

• take on any values, including decimal values

Is the following data discrete or continuous:

Measurements of time it takes to walk a mile

• Discrete

• Continuous

Is the following set of data qualitative or quantitative?:

LETTER grades on an essay assignment

• qualitative

• quantitative

Tags

CCSS.HSS.ID.B.5

TRUE OR FALSE:

A data set of ZIP CODES is qualitative, because you cannot perform any meaningful calculations with the numbers.

• TRUE

• FALSE

Is the data set qualitative or quantitative? if quantitative, is it continuous or discrete?:

The number of dairy cows on different farms

• Qualitative

• Quantitative

• Discrete

• Continous

Answer explanation

You CAN use these numbers in meaningful calculations, making the data set QUANTITATIVE, and you cannot own half a cow, meaning the dataset is also DISCRETE

Which formula represents ABSOLUTE ERROR

• claimed value - true value

• Absolute value/true value

• absolute value/true value x 100%

• claimed value - true value x 100%

ABSOLUTE errors are often expressed in-

• real numbers

• percentages

RELATIVE errors are often expressed as-

• Real numbers

• Percentages

Tags

CCSS.7.RP.A.3

Accuracy is how-

• close a measurement is to a true value

• detailed a measure is