Answer: aA 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years = (0.163,0.189)
Step-by-step explanation:
Let p = population proportion of adults in the U.S. who have donated blood in the past two years.
Given: A Gallup survey of 2322 adults (at least 18 years old) in the U.S. found that 408 of them have donated blood in the past two years.
Sample size: n= 2322
Sample proportion 
Critical z-value for 90% confidence level : z*=1.645
The confidence interval for population proportion:

A 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years:

Hence,
Answer:12
Step-by-step explanation:They are adding three box for every building so is the fifth block you do it
Answer:
A
Step-by-step explanation:
A is the answer A is the answer
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265 is the number when multiplied by 9 will give you 2385.
This can be obtained by dividing 2385 by 9.