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katrin [286]
3 years ago
14

I need help with this question

Mathematics
1 answer:
k0ka [10]3 years ago
4 0
We use a chi-square test of homogeneity, as we have a single categorical variable measured within two different populations.

The requirements for this test are that we have two simple random samples (this is clearly satisfied, given that we are sampling all students who take the class that year) and that the expected value for each cell, defined as the cell's row sum multiplied by the column sum divided by the sum of all values in the dataset, is greater than 5.  This is satisfied simply by testing for each value in the table.
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A car manufacturer produced 5,000 cars for a limited edition model. Dealers sold all of these cars at mean price
Alona [7]

Answer:

<h3>μₓ = 36,000 dollars</h3><h3>σ ₓ= 1,000 dollars</h3><h3 /><h3>Show work:</h3>

to find μₓ = 36,000 dollars:

Look in the question, it states that the mean is $36,000.

to find σ ₓ= 1,000 dollars:

<h3>\frac{3000}{\sqrt{9} } = 1000</h3>
3 0
3 years ago
How to tell if a quadratic equation has a real solution?
attashe74 [19]
If the discriminant(b^2-4ac) is rational, then the quadratic is rational.

~ThePirc
4 0
3 years ago
Read 2 more answers
Take a moment to think about what tan(θ) represents.1. Use interval notation to represent the values of θ (between 0 and 2π) whe
Nonamiya [84]

Let's first get the representation of tan

We also need to understand how to convert radians to degrees

\begin{gathered} \frac{\pi}{2}=90^0 \\ \pi=180^0 \\ \frac{3\pi}{2}=270^0 \\ 2\pi=360^0 \end{gathered}

For question 1

since tan > 1

It must be in either first quadrant or third quadrant as shown in the diagram above

\begin{gathered} \text{ } \\ \frac{\pi}{4}

5 0
1 year ago
Can anybody help me out with this it’s due tomorrow please?
pogonyaev
For the first question you just need to add up all the sides. so first add all the x numbers and then add all the plain numbers.
a perimeter is the total length around the shape.
3 0
3 years ago
I don't understand how to do this number line problem. I need help
Crank
The 3rd number line, (the one farthest to the right) is the line graph that shows the locations required.

If you need me to explain, just let me know!
3 0
3 years ago
Read 2 more answers
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