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faltersainse [42]
2 years ago
14

Matthews test grades were 80 92 85 91 and 88 find the mean of his grades

Mathematics
1 answer:
ad-work [718]2 years ago
4 0
80+92+85+91+88=409
436/5=87.2 is the median
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How many different committees can be formed from 12 teachers Abs 43 students of the committee consists of 4 teachers and 3 stude
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Answer:

6108795

Step-by-step explanation:

To obtain the number of ways the committee can be selected :

4 teachers from the 12 teachers available and 3 students from the 43 students available

Using combinatorics :

12C4 * 43C3

recall :

nCr = n! ÷ (n - r)!r!

Using calculator :

12C4 = 495

43C3 = 12341

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Answer:

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Step-by-step explanation:

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The distribution of the heights of students in a large class is roughly Normal. Moreover, the mean height is 68 inches, and appr
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