john enlarges a square by using a scale of 8:1, how much greater is the area of the enlarged square in units squared than the or
1 answer:
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Answer:
<h3>23</h3><u>Data is:</u>
- 5, 6, 7
<u>Mean:</u>
- (5 + 6 + 7)/3 = 6
<u>Standard deviation:</u>
- σ =
Correct choice is d
<h3>24</h3><u>Data is:</u>
- -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5
<u>Mean:</u>
- (-5 -4 - 3 - 2 - 1 + 0 + 1 + 2 + 3 + 4 + 5)/11 = 0
<u>Standard deviation:</u>
- σ =
Correct choice is d
<h3>25</h3><u>Data is:</u>
- 3, 4, 5, 6, 7
<u>Mean is:</u>
- 5
<u>Standard deviation:</u>
- σ =
≈ 1.4
Correct choice is d