Just write an equation on each one
Answer:
B is correct
Step-by-step explanation:
This is not an example of principle of independence
Answer:
<h2>The range is the simplest measure of variability to compute. The standard deviation can be an effective tool for teachers. The standarddeviation can be useful in analyzing class room test results. A large standarddeviation might tell a teacher the class grades were spead a great distance from the mean.</h2>
Step-by-step explanation:
<h2>
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Answer:
21. C, 24.B
Step-by-step explanation:
Since the y-value for x = 0 is not zero, the function cannot have sine in it because sin of 0 is always 0. Therefore, the function will have cos in it. That leaves only B and C left. Since cos(0) is always 1, and the value of y when x = 0 is 0.5, the function will have 1/2 multiplied by a cos function. The only answer option that has that is C.
Now, for the next problem, we know the values of all three sides, and we need to find one angle. We can use the law of cosines for this and plug the values into the equation:

We can subtract 40 squared plus 24 squared from both sides to get

Negative two times 40 times 24 equals -1920. Dividing -1920 from both sides gets us

Plugging this equation into a calculator and solving for C, we get the answer as approximately
C = 116.24353.
This rounds to 116.2
From the given question, we did not reject the null hypothsis which makes the answer to this question a type II error
<h3>What is type I error ?</h3>
Data:
- Mean fuel efficiency = 23.4 mpg
- samples = 41
This is an error done from rejecting the null hypothesis (H_0) when the null hypothesis is true, is known as type I error.
<h3>What is type II error ?</h3>
This is an error committed from not rejecting the null hypothesis (H_0) when actually the null hypothesis is false, is known as type II error
Given that the air filter changes are not effective i.e. ȝ = 24.7.
It means that if we do not reject the null hypothesis we shall make a correct decision. So consequently the chance of type II error is impossible because it occurs when we do not reject the null hypothesis, but here not rejecting the null hypothesis will lead to correct decision.
The answer to this question is type II error
Learn more on null hypothesis here;
brainly.com/question/15980493