Answer:
28
Step-by-step explanation:
x=12 and y=3
x=4 and y =1
x=28 and y=7
The answer is C . -7r^2 + 12r -8
Answer: See explanation
Step-by-step explanation:
1. Use the five steps of hypothesis testing.
Step 1: The aim of the research is to conduct the five steps of hypothesis testing.
Step 2:
Null hypothesis: H0 u= 4
Population mean: H1 u = 4
Alternate hypothesis: u ≠ 4
Population mean: u ≠ 4
Step 3 and step 4 are attached.
Step 5: Based on the calculation, the calculated value of t is less than the t critical value, therefore, the null hypothesis will be failed to be rejected.
2. Sketch the distributions involved
This has been attached.
3. Explain the logic of what you did to a person who is familiar with hypothesis testing, but knows nothing about t tests of any kind.
The distribution is "t".
The means is tested by using T-test.
Chi-square is used to test the single variance.
Answer:
In the US for oil. And all around the world
Step-by-step explanation:
The correct answer is : of those planning to not to go on vacation, more of them are women.
The correct answer is (C)
<h3>What is probability?</h3>
Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event
Given: total people asked =145
The first option is not correct because plan to go on vacation women are more than men.
The second option is also incorrect because more women were asked than men.
The third option is correct because out of planning who were not going any vacation, women are more than of men.
The fourth option is incorrect because More men plan to go on vacation.
Learn more about probability here:
brainly.com/question/11234923
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