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Otrada [13]
3 years ago
10

Data were collected on the number of days per week that members visit a certain fitness center. The values varied from 0 to 7, a

nd a distribution of relative frequencies for the values was created. Let the random variable X represent the number of days per week that a member visits. The mean of X is 3.12. Which of the following statements is the best interpretation of the mean?
Mathematics
1 answer:
pshichka [43]3 years ago
8 0

Answer:

D

Step-by-step explanation:

choice A is not guaranteed since the values varied from 0 to 7.

choice B seems alright, but doesn't include about or anything about the long run.

choice C is incorrect because 50% are less than 3.12 and 50% are greater than 3.12.

choice D seems pretty good, since it says average, long run, approach, etc.

choice E is incorrect because it says "will be". It is not definite.

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Question 14 (1 point)
labwork [276]

Answer:

Step-by-step explanation:

I don't think it really does grow by a constant rate. As he puts money in, the amount he puts in becomes less significant to the total.

Suppose he starts at 100 dollars.

After week one, he puts in 100 + 15 = 115 dollars.

The 15 dollars represents an increase of  15/100

After the second week, he puts in another 15 dollars. He has 115 in there already.

(15/115) * 100% = 13.04%

After the third week, he puts in another 15 dollars. (15/130 ) * 100% = 11.53

And so one

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3 years ago
I may or may not be dumb in the brain... I'll give brainliest to whoever answers first and correctly.​
Marrrta [24]

Answer:

23 degrees

Step-by-step explanation:

6x + 42 = 180

x = 23

7 0
3 years ago
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elena55 [62]
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Andrew [12]

I think the answer is #4

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X + 3 = 15<br> Solve the equation and check for the solution
dangina [55]

Answer:

x=12

Step-by-step explanation:

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