Exam Hack | CIE A2 Maths | S2 | Probability Density Function Question
Added 2022-10-14 01:37:18 +0000 UTC
Comments
Thank you very much
Adetona Adegbite
2023-04-29 11:52:46 +0000 UTCBecause the function is quadratic with x intercepts at 0 and 20, thus the middle value or expected value of t 'E(T)' will be 10. (halfway between them)
Intuitive
2023-04-29 09:23:23 +0000 UTCPlease can you give me an explanation to question 6b I really need it
Adetona Adegbite
2023-04-27 19:56:01 +0000 UTCthere is a question like this in march 2022. we need to find P ( |X| < 1) which is just P ( -1 < X < 1) or 2*phi(z) -1.
Advaith Kumar
2023-01-14 05:26:05 +0000 UTCI got you ask as many questions as you want.
Intuitive
2022-11-20 11:16:02 +0000 UTCahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh cheers bro. life saver.
xDuutch
2022-11-20 11:15:23 +0000 UTCI just times into the brackets by x, has nothing to do with the 3/16. "x*(4x - x^2) = 4x^2 - x^3".
Intuitive
2022-11-20 11:13:34 +0000 UTCQuick question. second question part a. right before you integrate you add 1 to both the powers. is that a normal thing when youve moved the 3/16 to the other side?
xDuutch
2022-11-20 11:08:25 +0000 UTCI haven’t seen a exam question like that but it would just be a piecewise function defined by two lines (f(x) = -x , for x < 0 & f(x) = x for x > 0). So, if you wanted to find something like P(|X| >2) you’d have to find two integrals between (-2, -infinity) & (2,infinity), where the infinity’s will be the start and finish of where the function is defined. If you send me an actual question on here or instagram I can do a written answer for you.
Intuitive
2022-11-18 20:38:38 +0000 UTCHow do you calculate probabilities where X is an absolute value? for i.e P( ∣X∣ > 2)
accountfor intuitive
2022-11-18 13:31:53 +0000 UTCPlease upload hypothesis videos sir
Aarnav
2022-10-25 13:27:02 +0000 UTCI'm working on them.
Intuitive
2022-10-18 21:54:14 +0000 UTChi can you please do the other topics ..like hypothesis testing
Briyen Castel
2022-10-18 14:45:51 +0000 UTC
