Https://photomath.net/s/rRVj6K
Answer:
50 cm²
Step-by-step explanation:
If you split it like you have done:
10 × (8-5)
= 10 × 3
= 30 cm²
AND
5 × (10-6)
= 5 × 4
= 20 cm²
THEN you have to add both of them together so...
30 + 20
= 50 cm²
I hope this helps and that you have a good day!
Answer:
If the scientist’s estimate about the number of fish in the lake is correct, then it is 44% likely to get 20 perch out of 50 with a tag.
Step-by-step explanation:
Let p be the proportion of tagged white perch in the Midwestern lake.
Scientist's claim is that p=
Let's test this hypothesis as:
p=0.30
p≠0.30
P-value of the test statistic will give the likelihood of getting 20 perch out of 50 with a tag if the scientist's estimate (
) is true.
Test statistic can be calculated using the equation
where
- p(s) is the sample proportion of white perch (
)
- p is the proportion assumed under null hypothesis. (0.30)
- N is the sample size (50)
Then
≈ -0.77
Two tailed p-value of the test statistic is ≈ 0.44
Thus if the scientist’s estimate about the number of fish in the lake is correct, (p=0.30) then it is 44% likely to get 20 perch out of 50 with a tag.
Answer:
6x^2-4a-2x-2
Step-by-step explanation: