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3 years ago

What is the difference between experiments and surveys

1 answer:

muminat3 years ago

5 0

A survey is a practice of asking a particular group of people for their thoughts on a product or issue, an Experiment is the practice of doing a comprehensive study on a n issue with the aim of proving it scientifically.

A survey is based on public opinion whereas an experiment is is putting in work to see the outcome, using trials and different ways of experimentation

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The difference between the value of the sample statistic and the value of the corresponding population parameter is called the _

mel-nik [20]

Answer: c. sampling error

Step-by-step explanation:

A population parameter is a number that is evaluated to describe the whole population . For example : Population mean , Population standard deviation etc.
A sample statistic gives the estimate value of the population parameter. For example : Sample mean , sample proportion.

Since, the sample is a subset of population , so there are chances for unavoidable variation in sample mean from the population mean that varies from sample to sample .

This variation is known as sampling error.

∴ The difference between the value of the sample statistic and the value of the corresponding population parameter is called the sampling error .

Hence,the correct answer is c. sampling error .

7 0

3 years ago

What is 7 1/2 - 4 1/4

GarryVolchara [31]

The answer is 3.25 or 3 1/4

6 0

3 years ago

Read 2 more answers

The formula A equals =P left parenthesis 1 plus r right parenthesis squared (1+r)2 gives the amount A in dollars that P dollars

vlabodo [156]

The interest rate is 3.5%.

EXPLANATION

We substitute the given values into the formula;

$A=P(1+\frac{r}{100})^t$

to obtain

$6427.35=6000(1+\frac{r}{100})^2$

We divide through by 6000 to obtain,

$\frac{6427.35}{6000}=(1+\frac{r}{100})^2$

This implies that,

$1.071225=(1+\frac{r}{100})^2$

We take the square root of both sides,

$\sqrt{1.071225}=(1+\frac{r}{100})$

This gives us,

$1.035=(1+\frac{r}{100})$

Add -1 to both sides of the equation to obtain

$0.035=\frac{r}{100}$

Multiply through by 100 to obtain;

$r=3.5$ %

$Therefore the rate is 3.5%$

3 0

3 years ago

Sally made a box to hold her jewlery collection. She used 42 inches of wood to build the sides of the box. If the box is 9 inche

Juliette [100K]

The length is 12, because if it's 9 inches wide it has two sides of 9 inches which is 18. Then subtract that from the intial value 42 to get 24. After, you divide 24 by 2 due to there being 2 sides of the box and 24 is the sum of both sides. Hopethis helps!

8 0

3 years ago

Joshua's assignment this weekend is to read a book with seventy-four pages. On Saturday he read thirty pages. How many pages doe

Allushta [10]

Answer:

Step-by-step explanation:

he read first 74 and need to

= 74-30

=44

8 0

2 years ago