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
Well to find the range, you need to take the highest number and subtract the lowest from it:
3 - -97
3 + 97
100
Range is always positive
plz mark me as brainliest if this helped :)
Answer:
Option B 6 30 am
Step-by-step explanation:
step 1
Sum all the times
(45+5+10+30+15)=115 minutes
Convert minutes to hours
we know that
60 minutes = 1 hour
so
115 minutes=60+55= 1 hour 55 minutes
Subtract 1 hour 55 minutes from 8 25 am
(8 25 am)-(1 hour 55 minutes)=(8 25 am-1 hour)-(55 minutes)
=7 25 am-55 minutes
=7 25 am-(25+30) minutes
=(725 am-25 minutes)-(30 minutes)
7 00 am-30 minutes
=6 30 am
Answer:
scientific notation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
10
. The sign of the exponent will depend on the direction you are moving the decimal.
5×10−1
Step-by-step explanation:
plz give brainliest
