Скачать или смотреть Past Paper Items on Discrete Random Variables | Revision AS/A Level Probability & Statistics 1

This video is a collection of Cambridge AS/A Level Probability & Statistics 1 (9709) past paper items on discrete random variables. The collection contains items about discrete random variables presented in worded problem-type and in tabular form. Further, it includes items involving the mean and variance of discrete random variables. The items are with varying difficulty and involves various experiments.

This is usually taught in class 10 (grade 10 maths) or class 11 (grade 11 maths).

If you would like to download a copy of the collection of AS/A level past paper items on discrete random variables, you may go the following link: https://bit.ly/3jJSGIa

The answers for the items given in the video can also be found on the link above. I would recommend you to answer the items on discrete random variables first by your own, then check on the answer key afterwards. In this way, you can check which items about discrete random variables you need to study more. It may give you the idea to study more on determining keywords leading to discrete random variables, as well as the correct way of dealing with given conditions in the problem.

🕘Video Sections🕘
0:00 Intro
0:08 Item 1 (construct probability distribution table; expected number)
0:15 Item 2 (without replacement; probability distribution; mean & variance)
0:23 Item 3 (find probabilities given the mean)
0:30 Item 4 (find probabilities; find E(X) and Var(X); find probabilities involving mean)
0:38 Item 5 (possible outcomes; probability distribution; expectation and variance)
0:45 Item 6 (find p; find E(X) and Var(X))
0:52 Item 7 (find probabilities given prob table)
0:59 Item 8 (sum of the numbers on two dice; expected number)
1:07 Item 9 (modal value; probability lies between)
1:14 Item 10 (simultaneous equations; find variance)

🎬NOTE: For a better viewing experience, please set the video in HD (1080p) mode.

Check out other math videos/shorts:

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