Answer:
None of the answer options are correct.
Step-by-step explanation:
A confidence interval of the mean is a range within is expected to find the population mean, with a certain degree of confidence.
In this case, the population mean is the average price for a lunch for a n=25 sample.
The interpretation of a 95% confidence interval of (14.43,17.57) should be that there is a 95% of confidence that the population mean (average price for a lunch out of a sample of 25 lunches) is within this interval.
Answer:
5a^2+22a+8
Step-by-step explanation:
5a(a+4)2(a+4)
Then you times each of the brackets
5a^2+20a
+2a +8
____________
=5a^2 +22a +8
and that's ur answer. I like to line it up so it's easier. I don't know if u meant by this but yeah I think it is right
Answer:
40% I think
Step-by-step explanation:
if it was on 20% and it's only gone up 20% it would now be at 40% but it still only has gone up 20%
The square root of 81/225 is 9/25 (Simplified.)
In a decimal form, 9/25 will be 0.36.
Hope this helped :)
