Dacostas math quiz scores 70 72 99 72 and 69. find the the mean and median. which is a better description of dacostas typical math quiz score?

Mean is the average. (70 + 72 + 99 + 72 + 69)/5 = 282/5 = 76.4 The median is the middle number, when numbers are ordered from least to greatest. Ordered from least to greatest: 69, 70, 72, 72 99 The median is 72 The median 72 is a better description of the typical store.

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.