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3 years ago

6

Identify the level of measurement of the data, and explain what is wrong with the given calculation.In a set of data, mood leve

ls are represented as 0 for bad, 1 for OK, and 2 for good. The average (mean) of the 637 mood levels is 0.9.

1 answer:

JulijaS [17]3 years ago

6 0

Answer:

Level of measurement=ordinal level

Average mean cannot be calculated for ordinal type of data.

Step-by-step explanation:

The level of measurement for mood levels is ordinal level because there is ordering in the data. It means that 0,1,2 represents the ranking of mood level from bad to good.

Furthermore, the average calculated for mood level 0.9 doesn't meaningfully represents the data. The average can't be interpreted in the context.

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Step-by-step explanation:

Given

Let the three sides be represented with A, B, C

Let the angles be represented with $\alpha, \beta, \theta$

[See Attachment for Triangle]

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$C = 12cm$

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What the question is to calculate the third length (Side B) and the other 2 angles ( $\alpha\ and\ \theta$ )

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Calculating Angle $\alpha$

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$10^2 = 6^2 + 12^2 - 2 * 6 * 12 *Cos\alpha$

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$100 = 36 + 144 - 144 *Cos\alpha$

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$\frac{-80}{-144} = Cos\alpha$

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Take arccos of both sides

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