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3 years ago

Which best describes the mean of a set of data?

Mathematics

2 answers:

tino4ka555 [31]3 years ago

7 0

B. the average of a set of data.

xxMikexx [17]3 years ago

4 0

The answer is B it is correct because i hot a 100

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Could someone help with this?

kobusy [5.1K]

I think the answer is b

7 0

3 years ago

If 1 inch = 16 miles, how many inches would represent 48 miles

Alecsey [184]

Answer: 3 inches

Step-by-step explanation:

1 inch = 16 miles

2 inch= 32 miles

3 inch = 48 miles

6 0

3 years ago

Read 2 more answers

A television sports commentator wants to estimate the proportion of citizens who "follow professional football." Complete parts

masha68 [24]

Answer:

626 and 654

Step-by-step explanation:

Given that a television sports commentator wants to estimate the proportion of citizens who "follow professional football."

Part I:

p = 0.48

$q=1-p = 0.52\\se = \sqrt{\frac{pq}{n} } \\\frac{0.4996}{\sqrt{n} } =$

Margin of error = $2.045*\frac{0.4996}{\sqrt{n} }626$

Sample size should be >626

Part II:

If unknown we take p = 0.5 because maximum std error for this

Here everything would be the same except insted of 0.48 we use 0.5

Margin of error = $2.045*\sqrt{\frac{0.5}{\sqrt{n} } } 654$

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a and b are too close because 0.46 proportion is close to part b proporti0n 0.5

4 0

4 years ago

What is the measure of the missing angle?

Lerok [7]

Answer:

115°

Step-by-step explanation:

Knowing that the sum of all interior angles of any triangle is 180 degrees, we can find the measurement of the missing angle of the triangle. The calculation is 180 - 75 - 40 = 65. Then, notice that the blue angle and the missing angle are supplementary (linear; add up to 180 degrees). So we can find the blue angle's measurement by 180 - 65, so the answer is 115 degrees.

3 0

3 years ago

What is the image of (12,-8) after a dilation by a scale factor of 1/4 centered at the origin

ch4aika [34]

Answer:

(3, - 2 )

Step-by-step explanation:

Since the dilatation is centred at the origin then multiply each of the original coordinates by the scale factor, that is

x - coordinate → 12 × $\frac{1}{4}$ = 3

y- coordinate → - 8 × $\frac{1}{4}$

Thus

(12, - 8 ) → (3, - 2 )

6 0

4 years ago