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mel-nik [20]
3 years ago
13

Fill in missing numbers in chart. state the rule

Mathematics
2 answers:
Setler79 [48]3 years ago
7 0
18=16, 32=30, and 86=84

tester [92]3 years ago
3 0
On the left side, the blank is 22, but I am clueless on the right side
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A test consists of 100 multiple choice questions, each with five possible answers, only one of which is correct. Find the mean a
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Answer:  Mean = 20 and standard deviation = 4

Step-by-step explanation:

Let x represents the success of getting the correct answer.

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Thus, the mean of the number of correct answer,

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Now, the standard deviation, \sigma_x= \sqrt{n\times p\times (1-p)}

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