Answer:
B) The sample size must be greater than 30
Explanation:
According to the central limit theorem the sample size must be greater than 30 in sampling distributions to state that it is approximately normal.
Therefore, the sample size must be greater than 30 for the sampling distribution of the sample proportion of housing units in the large city that are rentals to be approximately normal.
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Answer:
51i + 48j
Explanation:
Let's simplify step-by-step.
12(3i+7j)+3(5i−12j)
|Which is the equation.|
Distribute:
=(12)(3i)+(12)(7j)+(3)(5i)+(3)(−12j)
=36i+84j+15i+−36j
Combine Like Terms:
=36i+84j+15i+−36j
=(36i+15i)+(84j+−36j)
=51i+48j
Answer:
=51i+48j
I hope this helps, if it doesn't then just message me and ill be more than happy to help :)
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