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Statistical core concept. Descriptive statistics, distribution, hypothesis testing and regression. Bayesian probability theory. Introducing statistics in machine learning.
Use distributive practice rather than massed practice. Study in triads or quads of students at least once every week. Don't try to memorize formulas (A good instructor will never ask you to do this). Work as many and varied problems and exercises as you possibly can. Look for reoccurring themes in statistics.
Use distributive practice rather than massed practice. Study in triads or quads of students at least once every week. Don't try to memorize formulas (A good instructor will never ask you to do this). Work as many and varied problems and exercises as you possibly can. Look for reoccurring themes in statistics.
Yes, look on Coursera, EDX, or cow for an introductory course. I did it myself (long ago). Never had a statistics class until graduate school in statistics. When you get stuck, then you might switch to teaching yourself enough calculus to get past the sticking point in the statistics book.
Yes, the knowledge is necessary, but it is not sufficient. Statistics doesn't make sense to students because it is taught out of context. Most people don't really learn statistics until they start analyzing data in their own research. Yes, it makes those classes tough.
To sum up in a sentence: Calculus involves real, solid math whereas statistics asks one to evaluate the situation and do algebra with it. I took stats this semester and all I can say is, I learned a new language! For me, stats was a lot more difficult than calculus. Almost night and day.
I like calculus better than statistics, but when it came down to it, for me at least, statistics was the easier course. I can see why someone would feel that statistics is harder, however. Statistics requires good reading comprehension, as the word problems are generally less straightforward than that of calculus.
But as a single-year math course, precalculus is a bit more challenging. It's not about what's easier and what's harder. Statistics is all about measuring, studying and analyzing data. This is what some people like to do, and enjoy doing.

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