We can set up a proportion to solve this. 9 lions were tagged out of a sample of 50. This gives us the ratio 9/50 for the first part of the proportion.
For the second ratio, we know 85 lions were tagged out of an unknown population; this gives us 85/x.
Our proportion is
9/50 = 85/x
Cross multiply:
9*x = 50*85
9x = 4250
Divide both sides by 9:
9x/9 = 4250/9
x = 472.222
To the nearest whole number, this is 472 sea lions.
Step-by-step explanation:
We can set up a proportion to solve this. 9 lions were tagged out of a sample of 50. This gives us the ratio 9/50 for the first part of the proportion.
For the second ratio, we know 85 lions were tagged out of an unknown population; this gives us 85/x.
Our proportion is
9/50 = 85/x
Cross multiply:
9*x = 50*85
9x = 4250
Divide both sides by 9:
9x/9 = 4250/9
x = 472.222
To the nearest whole number, this is 472 sea lions.
Given: f= {(0, 1), (2, 4), (4, 6), (6, 8)} and g = {(2,5), (4,7), (5,8), (6,9), (7,5)}
GarryVolchara [31]
Answer:
The correct answer is 6/7
Step-by-step explanation:
For the function f, we have that in the 3rd element the coordinate begins with 4, on the pair (4,6).
For the function g we have that in the 2nd element the coordinate begins with 4, on the pair (4,7).
Therefore the correct answer is 6/7, according to the order shown.
Answer:
A unit rate is a rate with 1 in the denominator
Answer:
b) 65.08
ii) 0.75
Step-by-step explanation:
x(Kg): 62 63 64 65 66 67 68
Frequency(f): 1 5 11 15 10 6 2
xf: 62 315 704 975 660 402 136
b) mean(X) = ∑xf/N = 3254/50 = 65.08
c) x - X : -3.08 -2.08 -1.08 -0.08 0.92 1.92 2.92
(x - X)²: 9.49 4.33 1.17 0.0064 0.85 3.69 8.53
ii) Standard deviation(S.D.): √(∑(x - X)²/N = √(28.0664)/50 = √0.5613
∴ S.D.= 0.75
Answer:
I understand it very well