Mathematics · ขั้นสูง · ระดับ 2

Statistics

Estimators and their sampling distributions, bias, mean squared error, and estimates built by the method of moments and by maximum likelihood; confidence intervals for a mean, for a mean with the spread estimated from the data, and for a proportion, with the width, the confidence level and the sample size traded against one another; hypothesis tests from the null and the alternative through the test statistic, the rejection region and the P-value to the two kinds of error and the power, and on to paired and two-sample comparisons; simple linear regression by least squares, with fitted values, residuals, the explained fraction of the variation, inference for the slope and the diagnostics that decide whether the line should have been fitted at all; one-way analysis of variance, the split of the total sum of squares and the F test, with the pairwise comparisons that follow it; and a first look at Bayesian inference — priors, likelihoods and posteriors, conjugate updating, and credible intervals set beside confidence intervals.

Ages 18+ 26 lessons about 9 hours in all

คุณเริ่มได้เลยตอนนี้ ไม่ว่าจะเคยเรียนอะไรมาก่อน ไม่มีอะไรในหน้านี้ที่ต้องทำให้เสร็จก่อน หยุดพักได้ทุกเมื่อ ความก้าวหน้าของคุณบันทึกโดยอัตโนมัติ