Question
(a) Kebarangkalian Aziz menang dalam suatu pertandingan memanah ialah 0.25.
Sebanyak n pertandingan dijalankan. Kebarangkalian dia menang tepat 4 pertandingan adalah tiga kali kebarangkalian dia menang tepat 3 pertandingan.
The probability of Aziz wins in an archery competition is 0.25. The games are played for n times. The probability he wins exactly 4 games are three times the probability he wins exactly 3 games.(i) Cari nilai bagi n.
Find the value of n.
Answer
Hi Farhaini,
You’re in the right direction, we just need to get rid of the higher powers which will make things a lot easier!
We proceed to use the ^nC_r formula to further eliminate like terms:
Hope this helps! 
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Thank you very muchh !! 
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