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mylen [45]
3 years ago
6

4.36 Stats final scores. Each year about 1500 students take the introductory statistics course at a large university. This year

scores on the final exam are distributed with a median of 74 points, a mean of 70 points, and a standard deviation of 10 points. There are no students who scored above 100 (the maximum score attainable on the final) but a few students scored below 20 points. (a) Is the distribution of scores on this final exam symmetric, right skewed, or left skewed
Mathematics
2 answers:
Nesterboy [21]3 years ago
5 0

Answer:

Step-by-step explanation:

median 74

mean 70

this is the answer

velikii [3]3 years ago
3 0

Answer:

The distribution of scores on this final exam is left-skewed.

Step-by-step explanation:

We use the Pearson Mode Skewness to solve this question. It states that:

If the median is higher than the mean, the distribution is left-skewed.

If the median is lower than the mean, the distribution is right-skewed.

If the median is the same as the mean, the distribution is symmetric.

In this problem, we have that:

Median = 74

Mean = 70

Median higher than the mean

So the distribution of scores on this final exam is left-skewed.

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