I wish you success in your studies!
Please do the math yourself!
A good teacher can only give directions!
After all, others can't replace you in the exam!
I'm glad to help others!
o(≧v≦)o~~
Solution: The number of games won by Team A may be: 0, 1, 2, 3.
P (= 0) = (1-p) 3 needs no explanation.
P( = 1)=3p×( 1-p)^3
I won once in the first three times and lost the fourth time.
P( =2)=6p^2×( 1-p)^3
I won twice in the first four times and lost the fifth time.
p(=3)=6p^3×( 1-p)^2+3p^3×( 1-p)+p^3
Win p 3 the first three times
The first three games 1 lose, and the fourth game 3p3x (1-p).
Win the fifth game, that is to say, win 6p3x (1-p) 2 in the first two games.
Remember the formula!
I believe you can solve the rest yourself!
Learn to think independently!
If you do not understand, please ask again!