In case A, as the error would be a difference of 1, the assumption could be mantained, but in case B the difference will be bigger, showing that the ratio is not 3:1 but 4:1.
<h3><u>Ratios</u></h3>
Given that a preliminary study was carried out to test the hypothesis that the ratio of white to dark herons on the island was 3:1, but A) a small census found 16 white morphs and 4 dark, to determine if the assumption of a 3 :1 ratio could be rejected, and B) to determine the same question if the census were larger with 160 white morphs and 40 dark, the following calculations must be made:
A)
- 3 + 1 = 4
- 16 + 4 = 20
- 4 = 20
- 3 = X
- 60 / 4 = X
- 15 = X
- Therefore, as the error would be a difference of 1, the assumption could be mantained.
B)
- 3 + 1 = 4
- 160 + 40 = 200
- 150 = 3:1
- In this case, the difference will be bigger, showing that the ratio is not 3:1 but 4:1.
Learn more about ratios in brainly.com/question/1504221
Answer:
82.2%
Step-by-step explanation:
You gave them $4.11 extra and 4.11 of 5 is 82.2
Let see...
So we know that × is less than 14.3 subtract by 9.
We can figure out what × is is by subtracting 14.3 with 9 and then find the answer less than it.
So now we know that the answer can be 5.3 or more. This means that we can cross out 5.3, 6.4, and 7.5.
So it would be 3.1 and 4.2.
Perimeter of base x height. So, (3+4+5)x6. 12x6=72. 72 is the surface area.
