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junior college 2 | H2 Maths
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Hi, can someone help me check my ans for qns 6 and lemme know if it is to use poisson, poisson then binomial method to solve? If it is, may i know how will the formula look like for part 2? Cuz im unsure how to write the formula in with a range of X values.
Date Posted: 3 years ago
Views: 378
Please take note that a new r.v. has to be defined for each part.
Hi Clara, Mr J pointed out one error in my solution. Updated and uploaded.
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No need use binomial distribution,
The question is asking for a range of values within a week, and accidents each day event is independent of each other.
So u can add up the 1.45 each day for 7 days.
P(6<_X<_9) can be re written as
P(X<_9)-P(X<_5)
From here, u can use gc to calculate.
The question is asking for a range of values within a week, and accidents each day event is independent of each other.
So u can add up the 1.45 each day for 7 days.
P(6<_X<_9) can be re written as
P(X<_9)-P(X<_5)
From here, u can use gc to calculate.
Sorry, must use a new r.v. with a new mean
Yes, I wrote add up 1.45 each day for 7 days worth. So it technically means a new mean.
Right, the r.v. need to use another symbol too. like Y.
Thank you to Mr J having pointed out my mistake again. Some amendment is made and updated. Sorry
Thank you for the update! Ive finally managed to solve the qns to get the answers using the formula! Took me quite abit of additional read up to underatand. Tysm! Appreciate it :D
Good. Enjoy helping harder working students
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