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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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What is the answer to 16x+9=9y−2x for y.
dezoksy [38]

I got 18x+9=y
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7 0
4 years ago
Read 2 more answers
an item that cost $50 is marked 20% off. Sales tax for the item is 8%. What is the final price including tax? Solve the problem
kramer

Answer:

  $43.20

Step-by-step explanation:

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The combined effect of the two multipliers is ...

... 1.08 × 0.80 = 0.864

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Perhaps you're supposed to figure the tax (8% of $50 = $4), add the tax ($50 +4 = $54), then subtract the discount (20% of $54 = $10.80) to get

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6 0
3 years ago
Use the algebra tiles to model x 2. Which statements are true? Select all that apply. The expression cannot be modeled. The vari
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The statements are true about the algebra tiles to model x + 2 are as  follows;

The variable is modeled by an orange x tile.

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<h3>What are algerbra tiles?</h3>

Algebra tiles are square and rectangle shaped tiles or tiles that represent numbers and variables.

Given

Use the algebra tiles to model x + 2.

The statements are true about the algebra tiles to model x + 2 are as  follows;

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To know more about algerbra tiles click the link given below.

brainly.com/question/81876

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lorasvet [3.4K]

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there is nothing following the three so there is nothing to round up or down.

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