M outliers Study guides, Class notes & Summaries

WGU - Applied Healthcare Statistics Exam Questions and Answers 100% pass Rational numbers Largest number system Rational numbers Can be expressed as a fraction. 4 = 4/1. Also decimals that end or continue forever repeating. Real numbers Any number; Include zero, negative and positive integers. Real numbers are considered this. continuous and can be measured. Discrete data counted; doesn't allow for values between. Every positive whole number has two square roots. ...

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 individual data valuesl Histogram Skewed right Not a symmetric distribution, the tail is on the right Standard Deviation Rule 68% of the data are within 1 standard deviation, 95% are...

AP Stat - Chapters 1-4 - Multiple Choice - Cumulative Testthe following histogram represents the distribution of acceptance rates (% accepted) among 25 business schools in 1997, what % of schools have an acceptance rate above 40% - correct answer know how to read a histogram (variable vs. freq, fraction -> %) you want to use numerical summaries to describe a distribution that is strongly skewed to the left, which combination of measure of center and spread would be the best to use (mean an...

The Constant e 2.71828... slope-intercept form y=mx+b, where m is the slope and b is the y-intercept of the line. Logistic Function Equation Upper Limit L+m Logistic Function Equation Lower Limit m Logistic Function Equation Rate of increase k Logistic Function Equation Start of increase C Function that is a strait line linear Function with curves and no Asymptote polynomial strong correlation 0.7-1.0 moderate correlation 0...

Statistics final wgu academy exam questions and answers Categorical variables that there is no natural order among the categories nominal variables Categorical variables where there is natural order among the categories (low-high) ordinal variable A measurement which makes sense to talk about the difference between values but not the ratio between values interval Quantitive variables where is makes sense to talk about the difference in ratios. (Income, weight) ratio Valu...

Statistics final wgu academy exam questions and answers Categorical variables that there is no natural order among the categories nominal variables Categorical variables where there is natural order among the categories (low-high) ordinal variable A measurement which makes sense to talk about the difference between values but not the ratio between values interval Quantitive variables where is makes sense to talk about the difference in ratios. (Income, weight) ratio Valu...

Rational numbers - correct answer Largest number system Rational numbers - correct answer Can be expressed as a fraction. 4 = 4/1. Also decimals that end or continue forever repeating. Real numbers - correct answer Any number; Include zero, negative and positive integers. Real numbers are considered this. - correct answer ...

AP Stat - Chapters 1-4 - Multiple Choice - Cumulative Testthe following histogram represents the distribution of acceptance rates (% accepted) among 25 business schools in 1997, what % of schools have an acceptance rate above 40% - correct answer know how to read a histogram (variable vs. freq, fraction -> %) you want to use numerical summaries to describe a distribution that is strongly skewed to the left, which combination of measure of center and spread would be the best to use (mean an...

Pie chart numerical measure: percentages best used When displaying categories as parts of the whole Bar chart (bar graph) Category counts or frequencies best used when displaying counts or frequencies for each category individually Dot Plot 5-number summary (max, Q1, median, Q3, max) Smaller data set; useful to display the distribution and show gaps and outliers (quantitative) Stem Plot (stem-and-leaf plot) 5-number summary (max, Q1, median, Q3, max) Smaller data sets; useful to disp...

There are no outliers in the distribution above. How high would a temperature have to be in order to be outlier on the upper end? (formula) correct answer: upper end = Q3 + 1.5(IQR) We want to perform a prop Z-test to determine if there is a true difference in proportions, what is the value for the statistic? correct answer: -.115 or .115 Take the differences between the two proportions Are the events independent? (formula) correct answer: P(S) = P(S|M) If three random households we...