These functions provide interactive multiple-choice questions.
selftest.se.tck1()
selftest.se.tck2()
selftest.conf.tck1()
selftest.conf.tck2()
selftest.pdfs.tck1()
selftest.pdfs.tck2()
selftest.pdfs.tck3()
selftest.prob.tck1()
selftest.prob.tck2()
selftest.prob.tck3()
selftest.sampd.tck1()
selftest.sampd.tck2()
selftest.stats.tck1()
selftest.stats.tck2()