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levacccp [35]
3 years ago
11

A sample of experienced typists revealed that their mean typing speed is 87 words per minute and the median typing speed is 73 w

ords per minute. The standard deviation of typing speed is 16.9 words per minute. What is the Pearson coefficient of skewness
Mathematics
1 answer:
Margaret [11]3 years ago
8 0

Answer:

The Pearson coefficient of skewness is of 0.8284.

Step-by-step explanation:

Pearson skewness:

The skewness of a data set is given by the subtraction of the mean by the median, divided by the standard deviation.

In this question:

The mean is of 87, the median is of 73 and the standard deviation is of 16.9. So

(87-73)/16.9 = 0.8284.

The Pearson coefficient of skewness is of 0.8284.

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Step-by-step explanation:

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In a continuous series, mean(x) = 80, assumed mean(A) = 60 and<br>EF=40 then find the value of EFd.​
Aneli [31]

Using the given information, the value of Σfd is 800

<h3>Calculating mean using Assumed mean </h3>

From the question, we are to determine the value of Σfd

The formula for mean, using the assumed mean method is given by

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Where \bar x is the mean

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From the given information,

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Putting the parameters into the equation, we get

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Learn more on Mean here: brainly.com/question/20118982

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