Answer:
The sample size is
Step-by-step explanation:
From the question we are told that
The margin of error is E =4.266
The standard deviation is 
From the question we are told the confidence level is 99% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of
is
Generally the sample size is mathematically represented as
=>
=>
correct answer is 5, because f(-5) / g(-5) = -30/-6 = 5
Answer:C
Step-by-step explanation:
78-17.5*2 = 43 so C
Answer:c
d
Step-by-step explanation:
hi