Answer: (0.120,0.160)
Step-by-step explanation:
Given : Sample size : 
Number of disks were not defective =701
Then , the number of disks which are defective = 
Now, the proportion of disks which are defective : 
Significance level : 
Critical value : 
The confidence interval for population proportion is given by :-

Hence, the 90% confidence interval for the population proportion of disks which are defective = (0.120,0.160)
Answer:
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Step-by-step explanation:
82282922929293
You don't really need to do any calculations for this as the picture gives it away, but let's just understand the important concept behind this. Basically, tangent is opposite divided adjacent. So for this question:

When you solve for x, you are left with:

Then you need to add the 5 because his eyes cover up the bottom part of the tree, and therefore, your answer is D.
I think it is 2,2 ? I might not be sure