State, with an explanation, whether the mean, median, or mode gives the best description of the following average.
1 answer:
Answer:
C. Mean
A. The distribution is probably symmetric with a single peak.
Step-by-step explanation:
Mean measurement would give best description of the average number of car accidents people had in their lifetime. There are very less chances of skewed distribution because of the nature of the problem.
The data set in this case is not likely to have extreme variations thats why outliers wont be a problem. Therefore, mean measurement would be a better choice than median.
Example:
The typical data for this problem would look something like this.
2, 4, 4, 3, 5, 2, 1, 3
Mean= Sum of all elements/no. of elements
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The quadratic formula is:
and
Let's identify our a, b, and c values:
a: -1
b: 1
c: 12
Plug in the values for a, b, and c into the equation. Let's do the first equation:
Simplify everything in the radical:
Simplify the radical:
Combine like terms:
Simplify:
This is one solution, now, let's solve for the other equation:
Since when simplified, everything is the same except the subtraction sign, we can skip the simplification again and change the sign to subtraction:
Combine like terms:
Simplify:
Your final answers are: