Answer:
5 logbc
Step-by-step explanation:add them up
Answer: 2285
Step-by-step explanation:
Formula to find the sample size is given by :-
, where p = prior estimate of population proportion.
E= Margin of error.
= z-value for confidence interval of c.
Given : Confidence interval : 95%
From the z-value table , the z-value for 95% confidence interval =
The General Social Survey reported a sample where about 61% of US residents thought marijuana should be made legal.
i.e. the prior estimate of population proportion of US residents thought marijuana should be made legal : p=0.61
[∵ sample proportion is the best estimate for population proportion.]
Margin of error : E= 2%=0.02
Now, the required minimum sample size would be :-
Simplify ,
Thus , we need to survey <u>2285</u> Americans .
The consumption of electricity in May based on the model will be 1225kw.
<h3>How to calculate the consumption?</h3>
The model that's given to calculate the consumption is:
C = 1200 + 5t
May = 5th month
The consumption in May will be:
C = 1200 + 5t
C = 1200 + 5(5)
C = 1200 + 25
C = 1225Kw
In conclusion, the consumption of electricity in May based on the model will be 1225kw.
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This is what I got when I Google's it hope this helps
-√(81/9)+11 = -√9 +11 = -3+11 = 8
2√(100/4) - 23 = 2*√25 - 23 = 2*5 - 23 = -13