The side by side stemplot - Study guides, Class notes & Summaries

Straighterline Introduction to Statistics Exam Questions and Answers Four steps in the process of statistics -Answer-1. Producing Data 2. Exploratory Data Analysis 3. Probability 4. Inference Categorical variable -Answer-places individuals into one of several groups Two types: nominal and ordinal Quantitative Variable -Answer-represents a measurement or a count Two types: Interval and ratio Nominal Variable -Answer-categorical variables where there is no natural order among the catego...

Straighterline Introduction to Statistics questions with complete solutions 2023Four steps in the process of statistics 1. Producing Data 2. Exploratory Data Analysis 3. Probability 4. Inference Categorical variable places individuals into one of several groups Two types: nominal and ordinal Quantitative Variable represents a measurement or a count Two types: Interval and ratio Nominal Variable categorical variables where there is no natural order among the categori...

Straighterline Introduction to Statistics Questions and Answers Already Passed Four steps in the process of statistics 1. Producing Data 2. Exploratory Data Analysis 3. Probability 4. Inference Categorical variable places individuals into one of several groups Two types: nominal and ordinal Quantitative Variable represents a measurement or a count Two types: Interval and ratio Nominal Variable categorical variables where there is no natural order among the categories Ordinal...

Straighterline Introduction to Statistics Exam Questions and Answers Four steps in the process of statistics -Answer-1. Producing Data 2. Exploratory Data Analysis 3. Probability 4. Inference Categorical variable -Answer-places individuals into one of several groups Two types: nominal and ordinal Quantitative Variable -Answer-represents a measurement or a count Two types: Interval and ratio Nominal Variable -Answer-categorical variables where there is no natural order among the catego...

Straighterline Introduction to Statistics exam questions and answers Ratio Variable - Answer-quantitative variables for which it makes sense to talk about the difference between values AND the ratio between values; 0 represents the absence of quantity What type of variable?: eye color - Answer-nominal What type of variable?: socioeconomic status with categories low, med, high - Answer-Ordinal What type of variable?: Temperature - Answer-Interval What type of variable?: Income ...

What is the center of distribution? - ️️- represents the typical value - half of the observations has smaller values & the other half w/ larger values What does left skewed look like? - ️️ What does right skewed look like? - ️️ What is variability or spread of distribution? - ️️giving the smallest & largest values, we can wish to leave off outliers What are histograms good for? - ️️to show how data distributed What does a stemplot look like turned? - ️️a h...

Straighterline Introduction to Statistics Exam Questions and Answers Four steps in the process of statistics -Answer-1. Producing Data 2. Exploratory Data Analysis 3. Probability 4. Inference Categorical variable -Answer-places individuals into one of several groups Two types: nominal and ordinal Quantitative Variable -Answer-represents a measurement or a count Two types: Interval and ratio Nominal Variable -Answer-categorical variables where there is no natural order among the catego...

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...

WGU Statistics Questions and Answers Already Passed The probability of any event is between one and o. What is the equation for this? For any event A, 0 ≤ P(A) ≤ 1. The sum of all possible probabilities is___? One, the equation is :P(S) = 1 What is the complement rule? or the probability that an event does not occur is 1 minus the probability that it does occur. P(not A) = 1 - P(A) In probability, "OR" means either one or the other or both. P(A or B) = P(event A occurs or event B occurs...

WGU Statistics and Probability Two types of displays for Categorical variables - ANS Pie Chart, Bar Chart Numerical summaries for Categorical variables - ANS Category (group) percentages Two types of displays for Quantitative variables - ANS Histogram, Stemplot Numerical summaries for Quantitative variables - ANS Descriptive Statistics (Measure of Center plus Measure of Spread If distribution is symmetric, with no outliers, measure of center...