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Vikki [24]
3 years ago
14

Which statement are correct about the two-way frequency?

Mathematics
2 answers:
agasfer [191]3 years ago
5 0
A. False. The data is quantitative because we're dealing with numeric values instead of things like names, colors, etc.

B. False. The row categories are "students" and "teachers"

C. True. This value (2) is in the "teachers" row and "does not wear glasses" column.

D. False. The value 32 represents the number of students who wear glasses. See row1, column1

E. True. Look at the last value of the "teachers" row. 

===================================================

In summary, the answers are: C and E
Cloud [144]3 years ago
3 0

Answer:

b,c,e

Step-by-step explanation:

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A polling agency reported that 66 percent of adults living in the United States were satisfied with their health care plans. The
Tpy6a [65]

Answer:

A) The probability is 0.95 that the percent of adults living in the United States who are satisfied with their health care plans is between 63.6% and 68.4%.

Step-by-step explanation:

A polling agency reported that 66 percent of adults living in the United States were satisfied with their health care plans. The estimate was taken from a random sample of 1,542 adults living in the United States, and the 95 percent confidence interval for the population proportion was calculated as (0.636, 0.684).

This means that we are 95% sure that the true proportion of adults living in the United States who were satisfied with their health care plans is between 0.636 and 0.684.

So the correct answer is:

A) The probability is 0.95 that the percent of adults living in the United States who are satisfied with their health care plans is between 63.6% and 68.4%.

7 0
3 years ago
The volume of a spherical sculpture is 256 ft³. Rhianna wants to estimate the surface area of the sculpture. To do the estimate,
Brrunno [24]

Answer:

192 ft^2

Step-by-step explanation:

Given that

Volume of spherical sculpture = 256 ft³

\pi is used as 3.

To find:

Surface area of sculpture = ?

Solution:

First of all, let us learn about the formula for Volume and Surface Area of Sphere:

1. Volume =\frac{4}{3}\pi r^3

2. Surface\ Area = 4\pi r^2

Given volume is 256 ft³.

256 = \dfrac{4}{3}\pi r^3\\\Rightarrow 256 = \dfrac{4}{3}\times 3 r^3\\\Rightarrow 256 = 4 r^3\\\Rightarrow r^3=64\\\Rightarrow \bold{r = 4\ ft}

Now, let us put r = 4 in the formula of Surface Area to find the value of Surface Area:

Surface\ Area = 4\pi 4^2 = 4 \times 3 \times 16 = \bold{192\ ft^2}

So, approximate surface area of sculpture is 192 ft^2.

3 0
3 years ago
What is the factorization of: 3/20e + 6/45
gladu [14]
\frac{3}{20}e +\frac{6}{45} =\boxed{\bf{3\left(\frac{1}{20}e-\frac{2}{45}\right)}}
4 0
3 years ago
Please help! Best answer gets Brainliest!
Elanso [62]

Answer:

pretty sure its B

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Simplify the expression using the order of operations. <br> (3-5) * -| -22 - 52 * 4|
Naddika [18.5K]
8 × 22 + 52 × 4 
   176 + 208
        384 
this will be your answer 
i hope this help
5 0
3 years ago
Read 2 more answers
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