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LekaFEV [45]
2 years ago
8

Write your answer as a whole number or a decimal

Mathematics
1 answer:
Lynna [10]2 years ago
5 0

Answer:

minutes/mile

minutes=7.5-2.5

=55

55/10

5.5 minutes per mile

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Brent is trying to figure out the relationship between the number of times his friends post on social media and their grade poin
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Since grade point average decreases approximately linearly with increase in use of social media posts, It is Strong negative correlation.

Hence, option D is correct i.e. Strong Negative Correlation.

5 0
3 years ago
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A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it needs to be replaced. From past
Volgvan

Answer: We reject the null hypothesis, and we use Normal distribution for the test.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis : H_0:\mu\geq 50000

Alternate hypothesis : H_1:\mu

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\bar{X}=46800\\\\\sigma=9800\\\\n=29

So, the test statistic would be

z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{46800-50000}{\dfrac{9800}{\sqrt{29}}}\\\\z=-1.75

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So, p-value = P(z≤-2.31)=0.0401

And the P-value =0.0401 is less than the given level of significance i.e. 5% 0.05.

So, we reject the null hypothesis, and we use Normal distribution for the test.

4 0
3 years ago
In a lottery game, a player picks 7 numbers from 1 to 49. If 6 of the 7 numbers match those drawn, the player wins second prize.
Yuliya22 [10]

Answer:

,t,त्ल्ह्त?एकता !लोकतान्त्रिक फंत्त

6 0
3 years ago
Samuel surveys 15 students at his school and asks them: "How many candies per day do you usually eat?"
shepuryov [24]

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0

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13

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Interquartile range:

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Step-by-step explanation: There u go

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