The Student Room Group
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>

S1: Urgent need help!

Scroll to see replies

Original post by Athena.
That's why I carried on "branching" off BUS on Monday


But it makes a nonsense of your 0.5 since we are SURE that it was bus on Monday.

Then you have made a further error.


However, I repeat, full solutions (even incorrect ones) are unacceptable.
Reply 21
Avatar for Athena.
Athena.
1
Original post by Old_Simon
Yes but if u add up all yr outcomes it comes to more than 1 :s-smilie:


FYI I have a "not so great" teacher for Stats and from their teaching I can only apply it to the data this way, the only way I can get 0.36 is by doing (0.5 x 0.6 x 0.4) x 3... What's the other way to do it?
Reply 22
Avatar for Athena.
Athena.
1
Original post by TenOfThem
But it makes a nonsense of your 0.5 since we are SURE that it was bus on Monday.

Then you have made a further error.


However, I repeat, full solutions (even incorrect ones) are unacceptable.


I was unaware of full solutions... Oh well, I'll remember next time...
Original post by Athena.
FYI I have a "not so great" teacher for Stats and from their teaching I can only apply it to the data this way, the only way I can get 0.36 is by doing (0.5 x 0.6 x 0.4) x 3... What's the other way to do it?


Ok

You need P(BT) + P(TT)

There is no 0.5 involved
Reply 24
Avatar for Athena.
Athena.
1
Original post by TenOfThem
Ok

You need P(BT) + P(TT)

There is no 0.5 involved


Thanks a tonne
Original post by TenOfThem
Ok

You need P(BT) + P(TT)

There is no 0.5 involved


P(BT) + P(TT) = (0.6 x 0.4) + (0.4 x 0.4) = 0.4 that is not 0.36 so you are wrong

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you