A, since n=20 and p=5% if children are vaccinated mean number of new infections =np= 20*0.05=1 p(x<=2) = P(x=0)+P(x=1)
Y=7............................................................................................................................................................
Answer:
Hello,
c) 720
Step-by-step explanation:
consonants : 5
5 x 4 x 3 x 2 x 1 = 120
other letters : 3
3 x 2 x 1 = 6
and 6 x 120 = 720
720 arrangements here
Answer:
D
Step-by-step explanation:
