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matrenka [14]
2 years ago
9

People of different ages were asked the question "Do you listen to audiobooks?" The frequency table displays the percentage of "

yes" responses for different age groups. 13 to 17, 8 percent; 18 to 25, 15 percent; 26 to 35, 23 percent; 36 to 45, 45 percent; 46 and over, 48 percent. Would it be appropriate to display the data with a pie chart? Yes, because the data are grouped into categories. Yes, because the data can be displayed by a relative frequency compared with the whole. No, because the data display the percentage of time spent by each age group, not a relative frequency compared with the whole. No, because the data categories are too broad.
Mathematics
1 answer:
satela [25.4K]2 years ago
4 0

No, because the data display the percentage of time spent by each age group, not a relative frequency compared with the whole.

The correct option is C.

<h3>What is pie chart?</h3>

The “ pie chart” is also known as a “circle chart”, dividing the circular statistical graphic into sectors or sections to illustrate the numericical value.

Given

People of different ages were asked the question "Do you listen to audiobooks?

" The frequency table displays the percentage of "yes" responses for different age groups. 13 to 17, 8 percent; 18 to 25, 15 percent; 26 to 35, 23 percent; 36 to 45, 45 percent; 46 and over, 48 percent.

Considering that the data displays the percentage of time spent by each age group, not a relative frequency compared to the whole, a pie chart would not be appropriate.

  • Pie charts are used to indicate relative frequency of each group, when the whole combines to 100%.
  • In this problem, the sum of the percentages is not 100%, hence, it does not indicate relative frequency, and the third option is correct.

Hence, No, because the data display the percentage of time spent by each age group, not a relative frequency compared with the whole.

You can learn more about pie charts at;

brainly.com/question/25796636

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a researcher finds 200 women over 50 who exercise regularly, pairs each with a woman who has a similar medical history but does
Shtirlitz [24]

A researcher finds 200 women over 50 who exercise regularly, pairs each with a woman who has a similar medical history but does not exercise, then follows the subjects for 10 years to see which group develops more cancer. this is a prospective study.

<h3>Define prospective study.</h3>

Individuals are tracked over time in prospective studies, and information is gathered about them as their characteristics or circumstances change. Prospective studies include things like birth cohort studies. In retrospective research, people are sampled, and details about their past are gathered. Always after a predetermined number of incidents, the analysis takes place. The fact that individuals were enrolled and baseline data was obtained before any subjects experienced an outcome of interest identifies a study as prospective.

Given,

A researcher finds 200 women over 50 who exercise regularly, pairs each with a woman who has a similar medical history but does not exercise, then follows the subjects for 10 years to see which group develops more cancer. this is a ...

Prospective study

To learn more about prospective study, visit:

brainly.com/question/28565073

#SPJ4

3 0
1 year ago
Um...help please??????
Ket [755]

Answer:

Step-by-step explanation:

64inches

7 0
2 years ago
Read 2 more answers
8×25×23 find the product then subtract
Nitella [24]
Well 8x25x23 = 4,600 but what do you need to subtract by?
8 0
3 years ago
Use rounding to estimate the product
sdas [7]

Answer:

The estimate of the product is about 35 answer C

Step-by-step explanation:

- We use rounding to estimate the product of two fractions

- The mixed number has whole number and fraction

- To round the mixed number we look to the fraction

- If the numerator is half or greater than half the denominator, then we

  add the whole number by 1 and cancel the fraction

- If the numerator is less than half the denominator, then we keep the

  whole number as it and cancel the fraction

- Ex: If the mixed number is 2\frac{3}{4}, 3 is more than

 half 4 then we will add 2 by 1 and cancel the fraction part, the

 mixed number 2\frac{3}{4} after rounding is 3

- Ex: If the mixed number is 5\frac{1}{4}, 1 is less than

 half 4 then we will keep 5 as it and cancel the fraction part, the

 mixed number 5\frac{1}{4} after rounding is 5

* Lets solve the problem

∵ In the part 4\frac{3}{4} 3 is more than half 4

∴ The rounding value of 4\frac{3}{4} is 5

∵ In the part 7\frac{2}{17} 2 is less than half 17

∴ The rounding value of 7\frac{2}{17} is 7

∴ 4\frac{3}{4}*7\frac{2}{17}=5*7=35

* <em>The estimate of the product is about 35</em>

6 0
3 years ago
The area of a circle (A) is given by the formula A= pi*r to the second power, where r is the radius. The formula to find r is _.
podryga [215]

Answer:

<u>The correct option for the first blank is A. (A/pi) to the power of 1/2</u>

<u>The correct option for the second blank is A. 4.15</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the questions correctly:

Area of a circle (A) = π * r², where r = radius

2. The formula to find r is ________________:

A = π * r²

r² = A/π

√r² = √ A/π

r =  √A/π

<u>r =  A/π∧(1/2) or  (A/pi) to the power of 1/2. </u>

<u>The correct option for the first blank is A. (A/pi) to the power of 1/2</u>

3. if A = 54 centimeters squared, and pi = 22/7, r is _ centimeters.

We use the formula we got for the first blank, this way:

r =  (A/pi) to the power of 1/2

Replacing with the real values, we have:

r = (54/(22/7)) to the power of 1/2

r = 17.2 to the power of 1/2

r = √17.2 = 4.15 (Rounding to the next hundredth)

<u>The correct option for the second blank is A. 4.15</u>

3 0
3 years ago
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