WGU C955 OBJECTIVE ASSESSMENT ACTUAL TEST BANK QUESTIONS SOLUTIONS GRADED A PLUS PREMIUM STUDY RESOURCE

WGU C955 OBJECTIVE ASSESSMENT
ACTUAL TEST BANK QUESTIONS
SOLUTIONS GRADED A PLUS PREMIUM
STUDY RESOURCE

●● Skewed right
Answer: Not a symmetric distribution, the tail is on the right


●● Measures of center
Answer: Median, the mean (and mode)


●● Measures of spread
Answer: Range, IQR & standard deviation


●● Standard Deviation Rule
Answer: 68% of the data are within 1 standard deviation,
95% are within 2,
99.7% are within 3 standard deviations from the mean.


●● median (for center) & IQR (for spread)
Answer: skewed data uses these for center and spread

, ●● Scatter plot
Answer: A graphical representation of Q -> Q


●● Two way table
Answer: A graphical representation of C -> C


●● Side-by side box
Answer: A graphical representation of C -> Q


●● Interpolation
Answer: Making predictions *within* the range of your data. This is
usually accurate.


●● Extrapolation
Answer: Making predictions *outside* of the range of your data. This is
generally a bad idea.


●● Simpson's Paradox
Answer: When split up, each data set can have a pattern which goes
away when all the data is combined.


●● Prospective study