Step 1. In RapidMiner, either import the data set for this exercise into a repository or read the data from the CSV source file using a Read CSV operator.

Step 2. Using the appropriate RapidMiner operator, filter out any observations (examples) where the diameter is unknown (UNK).

1. What is the average gear Volume after data preparation (steps 1 and 2 above)?

   		338.461
   		338.440
   		441.000
   		514.770

QUESTION 2

1. How many observations remain in the data set after those with unknown (UNK) diameters are removed?

   		140
   		134
   		6
   		18

QUESTION 3

1. What is the standard deviation of gear Circumference after data preparation (steps 1 and 2 above)?

   		177.790
   		576.136
   		48.004
   		49.125

QUESTION 4

1. What data type has RapidMiner assigned to the Diameter attribute?

   		Polynominal
   		Integer
   		Real
   		String

QUESTION 5

1. How many missing values are there in the StructuralIntegrity attribute after data preparation (steps 1 and 2 above)?

   		2
   		7
   		0
   		9

QUESTION 6

1. If you only wanted to examine data collected on gears in their polished state, which RapidMiner operator would you use to reduce your data?

   		Sample
   		Replace Missing Values
   		Select Attributes
   		Filter Examples

QUESTION 7

1. If you only wanted to examine the numeric data attributes for the gears, ignoring any columns containing non-numeric values, which operator attribute would you use to reduce your data?

   		Select Attributes
   		Filter Examples
   		Replace Missing Values
   		Sample

QUESTION 8

1. Has MachSteel, Inc. produced and tested more metric or US unit gears?

   		More metric gears
   		More US unit gears
   		The same number of each
   		More rough metric gears, but more polished US unit gears

QUESTION 9

1. What is the polished surface area of gear ID 21?

   		1.950
   		2.280
   		2.340
   		1.970

QUESTION 10

1. How many gears have the highest possible structural integrity score?

   		40
   		6
   		0
   		18

QUESTION 11

1. What RapidMiner Studio command is used to create a static data respository for your data?

   		Connect to a Project
   		Create a Sample
   		Create / Connect to Repository
   		Import Data

QUESTION 12

1. What are the three main areas that hold useful tools within Rapid Miner Studio? Select all that apply.

   		Operators
   		Results
   		Repositories
   		Parameters

QUESTION 13

1. RapidMiner has assigned the first row of data in our CSV data set to be ______________________.

   		Sample Data
   		Header Data
   		Start Row
   		CSV Header

QUESTION 14

1. RapidMiner requires a_______ that each attribute will play

   		Integer
   		Polynominal
   		Role
   		Attribute

QUESTION 15

1. Upon clicking Finish, RapidMiner shows us a view of our data in what is called _______________________.

   		Design
   		Turbo Prep
   		Results
   		Deployments

QUESTION 16

1. ___________________________ combined with the operators connect them, constitue a data mining stream.

   		Splines
   		Lines
   		Connector quote
   		Operator

QUESTION 17

1. According to the textbook, which descriptive statistics are sometimes used to replace missing values found in data. Select all that apply.

   		Mean
   		Median
   		Mode
   		Standard deviation

QUESTION 18

1. Which RapidMiner operator is used to Read a CSV file?

QUESTION 19

1. If you want to reduce attributes that may be irrelevant to your analysis model, which Rapid Miner operator would you use to do so?

   		Attribute Reduction
   		Select Attributes
   		Reduction Planning
   		Attributes

QUESTION 20

1. Most data files for the analysis in the course will be a _________ type.