I would go with d .... If not it would be c...
Really hope I help but I would choose d
Answer: 0.6274
Step-by-step explanation:
Given: The proportion of patients experience injection-site reactions with the current needle : p=0.11
Sample size : n= 4
Let x be a binomial random variable that represents the people get an injection-site reaction.
Binomial probability formula: 
The required probability : P(x=0)

Hence, the probability that none of the 4 people get an injection-site reaction = 0.6274
Answer:
Changes
Step-by-step explanation:
#teamtrees #WAP (Water And Plant)
Answer:
Number 3
Step-by-step explanation:
The cars speed is 42 mph, how I got my answer.
I divided 84÷2=42.
I hope this helps.