3 years ago

PLZ SOMEONE HELP ME THIS IS URGENT AND MY MATH TEACHER IS REALLY STRICT PLZ HELP???

Mathematics

2 answers:

asambeis [7]3 years ago

4 0

Answer:

A) -4+(-7)

B) -4+7

Step-by-step explanation:

Making the number go to the left means making the number smaller or more negative, making the number go right makes the number bigger or more positive.

Hope this helps

Zepler [3.9K]3 years ago

3 0

Answer:

-4 + (-7)

-4+7

Step-by-step explanation:

here sorry it took so long

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Explanation:

We are given the below frequency table:

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1 | 0

2 | 3

3 | 4

4 | 16

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Let's denote the score by $x$ and frequency by $f$ .

The average formula is:

$Average=\frac{\sum fx}{\sum f}$

$=\frac{(1\times0) + (2\times3)+(3\times4) +(4\times16) + (5\times22)}{0+3+4+16+22}$

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$=\frac{192}{45}=4.267$

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