John Rhodes, Math Teacher at Senioritis.io

John Rhodes
June 21, 2023
Statistics

Mastering Percentiles: A Step-By-Step Guide To Calculating Percentiles In Data Distributions

Find and interpret the percentile of an individual value in a distribution of data. Percentile is percent. Find the percent to get percentile. If they are in...

John Rhodes
June 21, 2023
Statistics

How To Estimate Percentiles And Individual Values Using Cumulative Relative Frequency Graphs

Estimate percentiles and individual values using a cumulative relative frequency graph. .25 is Q1, .5 is Median, .75 is Q3. Read the x and y axis to...

John Rhodes
June 21, 2023
Statistics

How To Calculate Standardized Scores (Z-Scores) For Better Of Data Distribution In Math

Find and interpret the standardized score (z-score) of an individual value in a distribution of data. z-score = (value – mean) / standard deviation. If the z-score...

John Rhodes
June 21, 2023
Statistics

The Effects Of Adding, Subtracting, Multiplying, And Dividing Data Points In A Distribution

Describe the effect of adding, subtracting, multiplying by, or dividing by a constant on the shape, center, and variability of a distribution of data. Adding and subtracting...

John Rhodes
June 21, 2023
Statistics

Mastering Data Analysis: The Power And Precision Of Density Curves

Use a density curve to model distributions of quantitative data. Density curve has an area of 1 with the height of the graph being the reciprocal of...

John Rhodes
June 21, 2023
Statistics

Measures Of Central Tendency: Mean And Median In Density Curves

Identify the relative locations of the mean and median of a distribution from a density curve. Skewness affects mean by bringing it closer to the skew. Median...

John Rhodes
June 21, 2023
Statistics

Mastering The Empirical Rule: Estimating Proportions And Percentiles In Normal Distributions

Use the empirical rule to estimate the proportion of values in a specified interval or to find the value that corresponds to a given percentile in a...

John Rhodes
June 21, 2023
Statistics

Mastering Normal Distribution: A Step-By-Step Guide To Finding Proportions In A Specified Interval Using Table A Or Technology

Find the proportion of values in a specified interval in a Normal distribution using Table A or technology. To find a percentage between values use normalcdf(lower limit,...