Answer:
The variance is 49595.9
The standard deviation is 222.7
Step-by-step explanation:
The step -by -step explanation is shown in the picture above.
Which of these groups of relative frequencies would be best represented by a pie chart?
1 answer:
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Answer:
E. -1.48
Step-by-step explanation:
The test statistic is:
In which X is the sample mean, is the expected value,
is the standard deviation and n is the size of the sample.
A market research analyst claims that 32% of the people who visit the mall actually make a purchase.
This means that:
You stand by the exit door of the mall starting at noon and ask 82 people as they are leaving whether they bought anything. You find that only 20 people made a purchase.
This means that
The value of the test statistic is about:
So the correct answer is given by option E.
Answer:
volume of cube=441cm³
l³=441cm³
l=
length=7.6cm