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4 years ago

1. What are the mean, median, mode and range of the data set given the altitude of lakes in feet:

Mathematics

1 answer:

Zarrin [17]4 years ago

5 0

Answer:

I did the math, and the answer's not in there.

Step-by-step explanation:

Mean is the average of the data.

-12 + -9 + -14 + -39 + -49 + -49 + -18 + -43 = -233 / 8 = 29.125 = 29.1 is the mean

Median is the value in the middle. You have to arrange the numbers in ascending order first.

-49, -49, -43, -39, -18, -14, -12, -9

Notice, the middle valued are -39 & -18. In this case, get its average.

-39 + -18 = -57 / 2 = -28.5 is the median

Mode is the most frequent number in the data. So the answer is -49.

Range is the difference of largest number to the smallest number. (Take note that we are dealing with negative numbers.)

-9 - -49 = 40

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Complete Question

Pennsylvania Refining Company is studying the relationship between the pump price of gasoline and the number of gallons sold. For a sample of 14 stations last Tuesday, the correlation was 0.65.At the 0.01 significance level Can the company conclude that the correlation is positive

Answer:

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Step-by-step explanation:

From the question we are told that

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