WPC 300 TEST QUESTIONS AND CORRECT ANSWERS
Which of the following chart type is generally not used for data exploration? - Answer- Forecast chart
These kinds of graphs are used to show prediction over time. They are not used for describing the data.
Which of the following is an example of r...
Which of the following chart type is generally not used for data exploration? - Answer-
Forecast chart
These kinds of graphs are used to show prediction over time. They are not used for
describing the data.
Which of the following is an example of ratio data - Answer- A person's body weight
This indeed is an example of ratio data as the value of zero is meaningful.
Which data type uses numbers as identifiers with no real meaning? - Answer- Nominal
Remember the example of a number on player's jersey.
Which of the following measure is not used in describing a continuous data variable? -
Answer- Frequency
Which of the following is an example of a discrete random variable? - Answer- Number
of children in a family
A continuous random variable x is normally distributed with a mean of 0 and a standard
deviation of 1. The probability of an observation that lies within the range of -1.0 < x
<1.0 is:
0.5
1
0.68
0.62 - Answer- .68
Company A wants to return to profitability, and in pursuit of profitability, they defined the
problem statement as “Reduce our operating costs.†Which of the options below is
the best choice to improve this problem statement?
Researching the market and competitors
By making it time-bound only
By making it more specific and measurable and making it time-bound
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