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Mathematics, 23.02.2021 01:00 NEONREDBLADE

A study looked at the running times of certain movies released in​ 2005, as shown to the right. The standard deviation of these running times is 18.4 ​minutes, and the quartiles are Upper Q 1 equals99 minutes and Upper Q 3 equals118 minutes. ​a) Describe the spread in running times based on ​i) the quartiles. ​ii) the standard deviation. ​b) Should there be any concerns about using either of these descriptions of​ spread? Explain.

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A study looked at the running times of certain movies released in​ 2005, as shown to the right. The...
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