Pages
Archives

Recent Posts
Categories
 5number summary
 689599.7 Rule
 Alternative Hypothesis
 American roulette
 Bar Graph
 Benford's Law
 Bill Gates
 Binomial Coefficient
 Binomial distribution
 Binomial Experiment
 Birthday Problem
 Blaise Pascal
 Chevalier de Mere
 Chisquare goodness of fit
 Chisquare statistic
 Chisquare test
 Completely Randomized Experimental Design
 Conditional distribution
 Confidence Interval
 Confounding
 Correlation
 Critical Value
 Descriptive statistics
 Diabetes
 DoortoBalloon Time
 Double blind
 Empirical Rule
 Expected value
 Experiments
 First Quartile
 Gambling
 Games of chance
 Games of dice
 Histogram
 Interquartile Range
 Introduction to statistics
 Introductory statistics
 Joint distribution
 LeastSquares Regression
 Lurking variables
 Marginal distribution
 Matched Pairs ttest
 Mean
 Median
 Normal Curve
 Normal Distribution
 Null Hypothesis
 Observational studies
 OneSample tProcedures
 OneSample ttest
 pvalue
 Paul Allen
 Percentile
 Placebo
 Probability
 Randomized Experiments
 Reasoning of Statistical Inference
 Regression Line
 Residual Plot
 Residuals
 Resistant numerical summary
 Sampling Distribution
 Scatterplot
 Standard Deviation
 Statistical Inference
 Statistics In Action
 Stemplot
 ttest
 Tests of Significance
 The law of large numbers
 Third Quartile
 Time Plot
 Twoway tables
 Uniform Distribution
 Warren Buffet
Tag Archives: Introductory statistics
The probability of breaking the bank
What is the likelihood of a gambler winning all the cash in a casino? A better question is: what is the likelihood of a gambler losing all the money he or she brings into the casino? There had been casinos … Continue reading
Is your public pool free from urine?
Some people believe that the answer to the question posted in the title of the blog post is no. Now there is evidence to back it up. The study profiled here also gives an indication of how serious the problem … Continue reading
Is there anything we can do to avoid the flu?
In many places, influenza activity peaks during the period in between December and February. What are some of the best practices to reduce the spread of the flu and to minimize the risk of catching it? The standard recommendations are: … Continue reading
Looking at Spread
In the previous post Two Statisticians in a Battlefield, we discussed the importance of reporting a spread in addition to an average when describing data. In this post we look at three specific notions of spread. They are measures that … Continue reading
Two Statisticians in a Battlefield
Two soldiers, both statisticians, were fighting side by side in a battlefield. They spotted an enemy soldier and they both fired their rifles. One statistician soldier fired one foot to the left of the enemy soldier and the other statistician … Continue reading
The Tax Return of Mitt Romney
Mitt Romney is currently a candidate for the 2012 Republican Party nomination for U.S. President. He recently, bowed to pressure from another presidential candidate in the Republican Party, had to release his past tax returns. The release of these tax … Continue reading
Another Look at LA Rainfall
In two previous posts, we examined the annual rainfall data in Los Angeles (see Looking at LA Rainfall Data and LA Rainfall Time Plot). The data we examined in these two post contain 132 years worth of annual rainfall data … Continue reading
Is College Worth It?
Is college worth it? This was the question posed by the authors of the report called College Majors, Unemployment and Earnings, which was produced recently by The Center on Education and the Workforce. We do not plan on giving an … Continue reading
Food scientists need to make sense of numbers
Food – the part of the economy that encompasses the production, the processing and the marketing of foods – is big business. In fact, the successes of the food industry depend in no small measure on the use of statistics. … Continue reading →