3 years ago

My question changed... help again thanks

Mathematics

2 answers:

kipiarov [429]3 years ago

5 0

Answer:

acute

Step-by-step explanation:

lol I am studying the same thing

Dmitrij [34]3 years ago

4 0

The answer is acute.

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Score Frequency

RUDIKE [14]

Scores on an AP Exam at a local high school are recorded in the table. What was the average score?

Answer: D) 4.266 is correct

Explanation:

We are given the below frequency table:

Score Frequency

1 | 0

2 | 3

3 | 4

4 | 16

5 | 22

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

The average formula is:

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

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

$=\frac{0+6+12+64+110}{45}$

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

Therefore, the average score was 4.267

Hence the option D) 4.266

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Step-by-step explanation:

let the number be n then 7 less than this number is n - 7 , so

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