Answer: 271
Step-by-step explanation:
As per given description in the question, we have
Critical value for 90% confidence interval =
[using z-value calculator ]
Margin of error : E= 0.05
Since prior estimate of population proportion is unknown so we take p= 0.5
Formula we use to find the sample size :
[we assume p= 0.50]
i.e. 
Simplify :
Therefore , the minimum sample size required = 271
Answer47.5
Step-by-step explanation: add them together
Answer:2 6/8
Step-by-step explanation:
Do you subtract the 1/8 from the seventh eighth to get 6/8th. Then you subtract the six from the floor to get 2
You have 4/11 probability of pulling a blue marble. A 5/11 probability of pulling a black marble. A 2/11 probability of pulling a red marble.
Hi there!
We'll be finding the area of the entire middle rectangle (the big one), since that is the lateral area. It has a height of 15 and a length of 18.
15 x 18 = 270
The correct answer is the first option, 270m^2.
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!