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2 years ago

Which of the following characteristics of experiments are not also characteristics of surveys?

Mathematics

2 answers:

kari74 [83]2 years ago

6 0

Answer: The correct answer is option E and option C

Step-by-step explanation: From the question, all the option are characteristics of an experimental study, while some are as well characteristics of a survey study. We now have to identify the options that are not characteristics of a survey study.

Survey study is an observational study that is carried out to discover the characteristics of a sample group under a specific criteria and to compare the characteristics of this sample groups.

Replication with other groups of subjects cannot improve the reliability of a survey study, because two different survey study using a different samples or a different location will not have the same characteristics, and the result gotten from each sample can only be used to define that sample or the location of that sample.

It is not a prerequisite that one or more treatment groups and a control group should be included in a survey study. Because a survey group can also observe samples in their natural cause, without applying any force or treatment to alter them.

Data are gathered during a survey because we record our results and observations. A survey research is all about gathering data from either a treatment group or non treatment group, to compare with another data, and knowing the relationship between the characteristics of the sample. The result of the samples of a survey study are compared and analysed using statistics which includes mean, mode, range, bar chart, graph, histograms, and many more.

Andrews [41]2 years ago

5 0

Answer:

a,b,c,e

Step-by-step explanation:

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2 years ago

The actual distance between parks is 24 miles On a map these parks are 8 inches apart How many miles are equal to one inch on th

vaieri [72.5K]

Each inch in the map is equivalent to 8 miles.

Explanation:

There is a distance of 24 miles between two parks. This 24 miles is represented by an 8-inch gap in the map.

So 8 inches on that particular map = 24 miles in real life.

To find the distance that an inch on the map represents we must divide both sides of the above equation. Since we need to calculate how much distance 1 inch represents we divide both the sides by 8 so that 8 inches on the map changes into 1 inch.

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2 years ago

Seven apple women, possessing respectively 20, 40, 60, 80, 100, 120, and 140

Westkost [7]

Answer:

The amount each took home was 20 unit currency.

Step-by-step explanation:

We are given that Seven apple women, possessing respectively 20, 40, 60, 80, 100, 120, and 140 apples, went to market and sold all their apples at the same price, and each received the same sum of money.

Formula : $a \times n + (n - 1)$ , $(a + b)\cdot n + (n - 2)$ , $(a + 2 \cdot b) \cdot n + (n - 3)$ , $(a + 3 \cdot b) \cdot n + (n - 4)$ , $(a + 4 \cdot b) \cdot n + (n - 5)$ , $(a + 5 \cdot b) \cdot n + (n - 6)$ , $(a + 6 \cdot b) \cdot n + (n - 7)$

$a \cdot n + (n - 1) = 20$

$(a + b) \cdot n + (n - 2)=40$

$(a + 2 \cdot b) \cdot n + (n - 3) = 60$

$(a + 3 \cdot b) \cdot n + (n - 4) = 80$

$(a + 4 \cdot b) \cdot n + (n - 5) = 100$

$(a + 5 \cdot b) \cdot n + (n - 6) = 120$

$(a + 6 \cdot b) \cdot n + (n - 7) = 140$

On solving :

n = 7, a = 2, b = 3

So,

$2 \times 7 + 6 = 20$

$5 \times 7 + 5=40$

$8 \times 7 + 4 = 60$

$11 \times 7 + 3 = 80$

$14 \times 7 + 2 = 100$

$17 \times 7 + 1 = 120$

Based on market pricing if groups of apples are sold at 1 unit currency for 7, and extras are sold for 3 unit currency per extra 1, we have the amount :

2×1 + 6×3 = 20

5×1 + 5×3=20

8×1 + 4×3 = 20

11×1 + 3×3 = 20

14×1 + 2×3 = 20

17×1 + 1×3 = 20

20×1 = 20

Therefore, the amount each took home was 20 unit currency.

4 0

2 years ago