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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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azamat

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Work out the area of this circle. Take pi to be 3.142 and give your answer to 1 decimal place
Rashid [163]

Step-by-step explanation:

<em>I think you have forgotten to attach the question. </em>

<em>Anyways....</em>

In order to find the area of a circle use the formula:

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For example the radius is 3cm. The area of the circle will be:

π × 3^{2}

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Kimi and Jordan are each working during the summer to earn money in addition to
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Their earnings would be the same after 4 hours

Let the number of hours be x, and the weekly earning be y

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<u>Kimi</u>

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<u />

<u>Jordan</u>

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Read more about linear equations at:

brainly.com/question/13729904

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In parallelogram abcd, ab=14, bc=20, m(angle)b=54. Find to the nearest tenth the length of diagonal bd, and find measure angle d
muminat
It is is a parallelogram, hence we have to face sides equal in length and the opposite angles are also the same. From the given above we have:
ab=14 and its opposite side cd=14
bc=20 and its opposite side da=20

Solving for the diagonal measurement bd, we have consecutive angles are equal to 180°
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Solving for the angle dbc, we have
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