Answer:
16
Step-by-step explanation:
To solve, we can use an equation finding the average of the siblings'ages.
<h3>
Answer: Sample B as it has the smaller sample (choice #4)</h3>
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Explanation:
Recall that the margin of error (MOE) is defined as
MOE = z*s/sqrt(n)
The sample size n is located in the denominator, meaning that as n gets bigger, the MOE gets smaller. The same happens in reverse: as n gets smaller, the MOE gets bigger.
Put another way, a small sample size means we have more error because small samples mean they are less representative of the population at large. The bigger a sample is, the better estimate we will have of the parameter.
We are told that "sample A had a larger sample size" indicating that sample A has a more narrow confidence interval.
Therefore, sample B would have a wider confidence interval.
This is true regardless of what the confidence level is set at.
The answer is, 25z^4+30z^3+29z^2+12z+4
Or z(z(z(25z+30)+29)+12)+4
you multiply the numbers which is 8 can you give branliest?
Answer:
Factored form: -2(x + 7) = 8, x = -11 (brainliest)?
Step-by-step explanation:
-2(x + 7) = 8
x + 7 = 8 / -2
x + 7 = -4
x = -4 - 7
= -11
