Tibco Spotfire Certified Professional TCP-SP Exam Practice Test

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Total 60 questions
Question 1

A box plot can visualize which three of the following statistical measures?

Choose 3 answers



Answer : D, E, F

A box plot is a graphical tool to visualize key statistical measures, such as median, mean and quartiles1. The median is the middle value of the data, which divides the data into two equal halves. The variance is a measure of how spread out the data is, calculated as the average squared deviation from the mean. The standard deviation is the square root of the variance, which has the same unit as the data.A box plot can show these three measures by using the following elements2:

The band in the middle of the box indicates the median.

The bottom and top of the box indicate the first and third quartiles, which are the medians of the lower and upper halves of the data. The difference between the third and first quartiles is called the interquartile range (IQR), which is a measure of variability similar to the standard deviation.

The bottom and top of the whiskers represent the minimum and maximum values within 1.5 times the IQR from the first and third quartiles. Any values outside this range are considered outliers and are shown as individual points. The length of the whiskers is related to the variance of the data, as larger variance implies more spread out data and longer whiskers.

The mean is denoted by a small circle, which may or may not be inside the box depending on how skewed the data is. The mean is another measure of central tendency, which is the average value of the data. The distance between the mean and the median reflects the symmetry of the data distribution.


What is a Box Plot?

Box Plot

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Question 7

Which three of the following are types of input or output parameters for a data function?

Choose 3 answers



Answer : A, B, E

A data function is a reusable calculation that can be applied to data in a Spotfire analysis. A data function can have input and output parameters that define how the data function interacts with the data and the analysis. The input parameters specify what data or values are required for the data function to run, and the output parameters specify what data or values are returned by the data function.The types of input or output parameters for a data function are1:

Column: A column parameter represents a single column of data from a data table. A column parameter can be used as input to provide a vector of values to the data function, or as output to create a new column in the data table or overwrite an existing column. A column parameter can have a data type such as real, integer, string, or boolean.

Document property: A document property parameter represents a value that is stored in the analysis document and can be used to control various aspects of the analysis, such as filters, markings, colors, etc. A document property parameter can be used as input to provide a scalar value to the data function, or as output to create a new document property or overwrite an existing document property. A document property parameter can have a data type such as real, integer, string, boolean, date, or time.

Value: A value parameter represents a scalar value that is entered by the user or calculated by the data function. A value parameter can be used as input to provide a constant or variable value to the data function, or as output to return a single value from the data function. A value parameter can have a data type such as real, integer, string, boolean, date, or time.

The other options, column property, table, and visualization, are not valid types of input or output parameters for a data function.Reference:

Details on Data Functions -- Parameters

Configuring Data Function Parameters

How to select/deselect inputs/outputs/parameters in Statistica Data Function for Spotfire

How to pass input from Spotfire to Statistica Data Function?


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