You sell a smartphone that was originally priced at $600 but is now on sale for 20% off. You give loyalty customer an additional
2 answers:
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Answer:
Step-by-step explanation:
1. use the distance formula!
2. then using the distance formula with (2, 7) and (-6, -2) you get...
is the simplest radical form
:D
Answer:
a.is approximately normal because of the central limit theorem.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean and standard deviation
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean
and standard deviation
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this question:
Sample limit of 32 > 30, so the distribution is approximately normal because of the central limit theorem, and the correct answer is given by option a.