Statistics help?

Past car sales experiences has shown that 20% of all cars sold are black. if 25 recent sales of car are random


selected find the probabilities








a) Wat is the expected number of black cars in our sample?


b) wat is the variances of number of black cars in our sample?


c_ exactly 6 of the cars are black


d) between 1 and 4 cars are inclusive are black


e) no more than 3 cars are black


f) more than 20 of the cars are not black?





i dont get this math question. can someone please help me and explain it

Statistics help?
Oh mon, dis question given me a headache already. I try to sole but I come up wit wrong asnwer all da tiome sorry.





Jaffi