Answer: The point estimate for the mean weight of all spawning Chinook salmon in the Columbia River is the mean weight from your sample
= 31.2 pounds .
Step-by-step explanation:
The weights of spawning Chinook salmon in the Columbia river are normally distributed.
Given : The mean weight from your sample is 31.2 pounds with a standard deviation of 4.4 pounds.
The point estimate for the mean
weight of all spawning Chinook salmon in the Columbia River is the mean weight from your sample
i.e. is 31.2 pounds because the best point estimate for population mean is the sample mean. [in normal distribution]
Answer:
45000 five digit odd numbers are possible if the leftmost digit cannot be zero.
Step-by-step explanation:
Pls mark the brainliest
Answer:
1-a
2-a
3-b
Step-by-step explanation:
hope that helps
Answer:
<h2>

</h2>
Step-by-step explanation:
To find y when x=4, we must first find the relationship between them
The statement
y varies directly with x is written as
<h3>

</h3>
where k is the constant of proportionality
From the question
when y = 1/5
x = 3
Substitute the values into the above formula and solve
That's
<h3>

</h3>
So the formula for the variation is
<h3>

</h3>
From the question
when x = 4
<h3>

</h3>
Hope this helps you
Answer:
Step-by-step explanation:
<u>Solve the equation:</u>
- 3x² - 12 = 0
- x² - 4 = 0
- x² = 4
- x = √4
- x = 2 is the positive solution
Correct choice is B