WGU 955:PROBABILITY & STATISTICS EXAMS PACKAGE DEAL|ALL WITH 100% CORRECT ANSWERS|GUARANTEED SUCCESS

Discrete data Has distinct values, can be counted, had unconnected points (think dots) Continuous data Has values within a range, measured not counted, does not have gaps between data points (data is connected lines or curves). Example of discrete data Days of the week Expres...

median vs IQR skewed data uses these for center and spread Histogram - when to use Based on the shape of the distribution, uses mean + standard deviation OR median + IQR to describe center and spread - Larger data sets; shows shapes of distribution and potential outliers; ignores the ...

WGU C955 - Module 4 Descriptive Statistics for a Single Variable questions and answers

Boxplot an image that has min, Q1, median, Q3, max Histogram A graphical representation -- bars, measuring the frequency within each interval Skewed right Not a symmetric distribution, the tail is on the right, i.e. extra stuff on the right Measures of center Median, the mea...

Boxplot an image that has min, Q1, median, Q3, max Histogram A graphical representation -- bars, measuring the frequency within each interval Skewed right Not a symmetric distribution, the tail is on the right, i.e. extra stuff on the right Measures of center Median, the mea...

Identify the number of terms and the coefficient for the x term in the expression: 4x−3y+7 a Terms: 2 ; Coefficient: −3 b Terms: 2 ; Coefficient: 4 c Terms: 3 ; Coefficient: −3 d Terms: 3 ; Coefficient: 4 Terms: 3 ; Coefficient: 4 What is the equation of the graph in slope-interce...

skewed right A skewed distribution where the long tail of the curve is on the positive side of the peak. skewness A measure of the degree to which a probability distribution "leans" toward one side of the average, where the median and mean are not the same. the Standard Deviation R...

Conditional Probability (and Probability) P(B|A) = P(A and B)/P(A) or P(A|B) = P(A and B)/P(B) Determining Independence P(B|A) = P(B) or P(A and B) = P(A) x P(B) can be used. Multiplication Rule for Independent Events If two events are independent, then P(A and B) = P(A)...

The relationship between the two variables on a scatterplot can be measured by what statistic? {{ Scatterplot of sales on the x-axis and profit index on the y-axis. }} a Correlation coefficient ( r ) b Regression c ANOVA d Chi-square Correlation coefficient ( r ) A study was complet...

Discrete data Has distinct values, can be counted, had unconnected points (think dots) Continuous data Has values within a range, measured not counted, does not have gaps between data points (data is connected lines or curves). Example of discrete data Days of the week Expres...