Answer:
I need help too, I'm about to fail this
Whats the answer options you get
The last one. hope it helps!
<span>The wealthiest nations of Southeast Asia, excluding Singapore (which is one of the wealthiest countries in the world) are Thailand and Malaysia, with Malaysia being in the 130th position according to GNI (Gross national Income) and Thailand in the 120th position (the higher the number the bigger the GNI). After this it's Indonesia in the 72nd place. </span>
Answer:
a) 0.0358
b) 0.0395
c) 0.1506
Explanation:
Number of clues "daily doubles" = 3
Determine the probabilities
<u>a) P(single contestant finds all three ) </u>
assuming event A= a returning champion gets the "daily double" in first trial
P(A) = 1/30 , P(~A) = 29/30
assuming event B = any player picks up "daily double" after the first move
P(B |~A ) = 1/3
hence : P ( B and ~A ) = 29/30 * 1/3 = 29/90
<em>considering second round </em>
P(player chooses both daily doubles ) = 1/3 * 1/3 = 1/9
∴ P(single contestant finds all three ) = 29/90 * 1/9 = 0.0358
<u>B) P ( returning champion gets all three ) </u>
= (1/30 + 29/90 )* 1/9
= 32 / 810 = 0.0395
<u>c) P ( each player selects only one )</u>
P = 32/405 + 29/405
= 61 / 405 = 0.1506
