toideve: eleyi gidi gannnn!

Ladokun12: See as ade sweat when factoria dey work everytin without a singl drop.btw..who iz behind diz questns sef

jackpot: Expected Value Problem, I see.

Hint: use 1/9 for probability(even){e.g. Numbers 2,4,6} and 1/18 for probability(odd){Numbers 1, 3, 5}

then apply the formula

only geniuses can solve this without aid

Richiez: SOLUTION
let p(even)=x and p(odd)=y
from the question, p(even)= 2*p(odd)
therefore; x=2y........(1)
now be careful because the ratio
p(even): p(odd)
= 2 : 1
summation of ratios= 2+1 =3
hence, p(even)= 2/3 and p(odd) = 1/3

no of time to roll dice = 5
therefore no of odd number outcomes(also known as expectation) = 1/3 * 5 = 2.67 (approx)

max. amt to be paid = 5naira * 2.67 =13.35 naira

Richiez: SOLUTION
let p(even)=x and p(odd)=y
from the question, p(even)= 2*p(odd)
therefore; x=2y........(1)
now be careful because the ratio
p(even): p(odd)
= 2 : 1
summation of ratios= 2+1 =3
hence, p(even)= 2/3 and p(odd) = 1/3

no of time to roll dice = 5
therefore no of odd number outcomes(also known as expectation) = 1/3 * 5 = 2.67 (approx)

max. amt to be paid = 5naira * 2.67 =13.35 naira

Alpha Maximus: Questions were set by me, Richiez and Doubledx.....no-one has nominated my question yet, I sense a pre-meditated conspiracy!!

Alpha Maximus: Questions were set by me, Richiez and Doubledx.....no-one has nominated my question yet, I sense a pre-meditated conspiracy!!

Dr.Gboy:
oga Richiez u made a mistake 1/3 * 5= 1.667 not 2.67 when u multiply it by 5 , you have 8.335 therefore max should be 10# since u can only pay 5#

smurfy: I googled it. Unfortunately, someone supplied a wrong answer on NL Maths Clinic thread

jackpot: Expected Value Problem, I see.

Hint: use 1/9 for probability(even){e.g. Numbers 2,4,6} and 1/18 for probability(odd){Numbers 1, 3, 5}

then apply the formula

only geniuses can solve this without aid

factorial1: Ah....I catch u boss, so, u dey google m ni abi?

factorial1: Ah....I catch u boss, so, u dey google m ni abi?

Dr.Gboy:
oga Richiez u made a mistake 1/3 * 5= 1.667 not 2.67 when u multiply it by 5 , you have 8.335 therefore max should be 10# since u can only pay 5#

Ladokun12: hehe.googl and juju no b same??he code am

Richiez: Question7 is from the 100 page Nairaland Mathematics Clinic Thread

You are about to play a dice game where you are paid 5 naira each time you roll an odd number. You are allowed to roll the dice five times. A friend tells you that the die used is biased such that even numbers are twice as likely to appear as odd numbers. Based on this information, what is the maximum amount you would pay to play this game?

Richiez:

yea you are right ....I copied and pasted the solution as it was on the thread without reviewing it....check the updated solution

toideve: abeg abeg! that last question's solution be as e get. from the solution given, the answer ought to be 8.33 Naira. the answer given is wrong! so what now?