All categories

3 years ago

The histogram shows the sizes (in acres) of 44 vineyards.

Mathematics

1 answer:

Vaselesa [24]3 years ago

6 0

Answer:

See below and attachment
Correct answer options are in bold and underlined

Step-by-step explanation:

The histogram shows the sizes (in acres) of 44 vineyards.

a. Approximately what percentage of these vineyards are at or over 210 acres?

10+13 = 23 of the vineyards are at or over 210 acres. Total is 44, so

23/44*100% = 52% rounded to the nearest percent

b. Describe the distribution (shape, center, spread, unusual features).

A. The distribution is uniform.
B. The distribution is bimodal.
C. The distribution is unimodal.

Is the distribution symmetric or skewed?

A. The distribution is skewed to the left.
B. The distribution is symmetric.
C. The distribution is skewed to the right.

Which of the following best describes the center?

A. The center is best described by the mean since the distribution is symmetric and there are no outliers.
B. The center is best described by the median since the distribution is skewed to the right and has an outlier.
C. The center is best described by the median since the distribution is skewed to the left and has an outlier.

What is the spread?

The acreage ranges from 30 to 270 acres.

30, 90, 120, 210, 240, 270

Describe any unusual features.

A. There are no unusual features.
B. Most of the vineyards have close to the same number of acres.
C. There is one vineyard that has considerably fewer acres, 0 to 30 acres, than the rest.

You might be interested in

If Pay(hours) is the function that describes Al's monthly pay at BIT Labs based on his training, Pay(22 hours), Pay(22), and P(2

maw [93]

If Pay(hours) is the function that describes Al's monthly pay at BIT Labs based on his training, Pay(22 hours), Pay(22), and P(22) all represent what? c

3 0

3 years ago

The intensity of a light source at a distance is directly proportional to the strength of the source and inversely proportional

jolli1 [7]

Answer:

x= $\frac{16}{\sqrt[3]{2}+1 }$

Step-by-step explanation:

Q= illumination

I = intensity

Q= I/d^2

Q_total = $\frac{I_1}{d_1^2}+\frac{I_2}{d_2^2}$

= $\frac{I}{x^2}+\frac{2I}{(16-x)^2}$

now Q' = 0

⇒I ${-\frac{2}{x^3}}+\frac{4}{(16-x)^3}$

x= $\frac{16}{\sqrt[3]{2}+1 }$

[/tex] $\frac{1}{x^3} = \frac{2}{(16-x)^3}$

x= $\frac{16}{\sqrt[3]{2}+1 }$

is the required point

5 0

3 years ago

2y = x + 3 5y = x - 7 What is the solution set of the given system?

prohojiy [21]

2y = x + 3 then x = 2y - 3
5y = x - 7 then x = 5y + 7

so
2y - 3 = 5y + 7
2y - 5y = 7 + 3
-3y = 10
y = -10/3
y = -3 1/3

2y = x + 3
2 (-10/3) = x + 3
-20/3 - 3 =x
-29/3 = x
-9 2/3 =x
or
x = -9 2/3

solutions: x = -9 2/3 and y = -3 1/3

5 0

3 years ago

Read 2 more answers

Isabella's teacher said she must read more than 70 pages of her book by the end of the week. Isabella is able to read 12 pages o

AlexFokin [52]

Answer:

She must read more than 5 more hours.

Step-by-step explanation:

4 0

3 years ago

For each of the following studies, say whether you would use a t test for dependent means or a t test for independent means.

Shtirlitz [24]

Answer:

1. T test for independent means

2. T test for dependent means

3. T test for dependent means

Step-by-step explanation:

In number 1, the two groups are unrelated. The first group has 25 subjects and they're all unemployed. The second group has 24 subjects and their employment status is not stated and might not be the same all through. Also, the first group is receiving a new type of job skills program while the second group is taking the standard job skills program.

- The groups in the experiment are unrelated

- The tests in the research are unrelated

- The purpose of the research is unreasonable - the researcher seeks to measure how well all 49 subjects perform on 'a' job skills test! No comparison between the scores or mean scores of the two groups.

In number 2, the researcher uses the same subjects and also measures the same variable but twice. This is a good example of a study where the t test for dependent means can be taken. Same applies in case 3.

5 0

3 years ago