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Furkat [3]
3 years ago
10

For every 3 girls in Mr Hegarty's class there are 4 boys. What is the ratio of girls to boys in the class?

Mathematics
1 answer:
Illusion [34]3 years ago
6 0

Your answer would be 3:4

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Describe how the range of a data set can help describe its variability.
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Answer:

The range is defined as the difference between the term with the highest value and the term with the lowest value. This statistic is used to measure the variability of a series of data because it provides information on how far apart the values of a tail of the distribution are from the values at the other end of the tail.

Imagine that you manufacture a type of spare part for cars that must have a measurement of 10 cm with a margin of error of 1 cm.

This is:

10 ± 1 cm

Then you expect your manufacturing process to produce pieces with identical dimensions, that is, with little variability.

If you randomly select a sample of n pieces and measure them, the variability is expected to be low, so that your process is of quality, then expect a low range preferably less than 1 cm.

{10, 10.1, 10.5, 9.8, 9,6, 10.2} Range= 10.5 - 9.6 = 0.9 cm <em> low variability</em>

But if you find that the range is up to 8 cm, this would mean that not all pieces measure around 10 cm, it means that the variability of the measurements is high.

{14, 12, 11, 8, 7, 11, 12, 15} Range = 15 - 7 = 8 cm   <em>high variability </em>

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Answer:

The Answer is that Orchestra seats were $15 and Balcony seats were $9.

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400(x+6) + 250x = 8250

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6000 + 2250 = $8,250

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