Question 14 of 2004 paper (1 Viewer)

[GooseD]

14 Mike plays a game in which he has:

• 1/10 chance of winning $20

•1/2 chance of winning $1

• 2/5 chance of losing $2.
What is Mike’s financial expectation when playing this game?
(A) $1.70
(B) $3.30
(C) $17.00
(D) $19.00


i said (B) because i did not see the .. 2/5 chance of <B>"losing"</B> $2.
i get so frustrated with these trick questions. what pointers can you give me, other then "READ THE QUESTION".

 

[GooseD]

alright ill start tonight. ill have to go to a religion topic now and ask how to do that!! >_<

 

[PC]

Another valuable piece of advice ... read the question CAREFULLY!

 

[GooseD]

Another valuable piece of advice ... read the question CAREFULLY!

argh, yeah thanks... i don't like wasting valuable time, i never finnish the exams.

 

[ephemeral]

I hate questions like that which are based purely on your reading of the question, kind of defeats the purpose of a maths exam.

 

[Cab31]

if it seems too simple...u probably havent read it properly...there's my advice

 

[Scanorama]

argh, yeah thanks... i don't like wasting valuable time, i never finnish the exams.

Practice makes perfect. With these kind of poohead questions, the only way to do good at it is to practice them. In the exam, although its not uncommon on general, but most questions are trickly, but once you get the hang of those exam questions, they use the same tricks. I hated probability too, finanical maths is also confusing. Good luck in your HSC