I say D you should probably wait for another answer though
Answer: 16590
Step-by-step explanation:
The formula we use to find the sample size is given by :-
, where p = prior estimate of population proportion.
= Critical z-value (Two- tailed)
E= Margin of error .
Let p be the population proportion of cyanobacteria.
Given : E = 0.01
Critical value for 99% confidence interval : 
If Ian does not want to rely on previous knowledge , then we assume p=0.5 because the largest standard error is at p=0.5.
Now, the required sample size = 

Required sample size = 16590
Answer:
x=-2
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
range=highest number - lowest number
=8 - 0
=8
Answer:
the 9th percentile, i dont even know the first percentile
Step-by-step explanation: