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1 year ago

If there are 30 data points in a set of data, what is the number of degrees of freedom?

Mathematics

1 answer:

rjkz [21]1 year ago

4 0

The number of degrees of freedom is 29.

<h3>What is degree of freedom?</h3>

A degrees of freedom inside a statistical method describe how many values in a computation can vary. The degrees of freedom of chi-square tests, t-tests, and even more complex f-tests can be calculated to assist confirm their statistical validity.

These tests are frequently used to have a data with the data that would anticipated to be obtained if a given hypothesis were followed.

Degrees of Freedom Formula:

The statistical formula for determining degrees of freedom is straightforward. It is written as follows: degrees of freedom are the number of values in such a data set minus one.

df = N-1

Where N denotes the total number of items in the data collection (sample size).

Now according to the question,

Its degrees of freedom will be determined using the method df = N-1:

df = 30-1 = 29 appears in this case.

This means that in this data collection, three integers can vary as long even as mean remains 20.

To know more about the degree of freedom, here

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Step-by-step explanation:

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2 years ago

Osama starts with a population of 1,000 amoebas that increases 30% in size every hour for a number of hours, h. The expression 1

Blizzard [7]

Answer: The correct option is A, itis the product of the initial population and the growth factor after h hours.

Explanation:

From the given information,

Initial population = 1000

Increasing rate or growth rate = 30% every hour.

No of population increase in every hour is,

$1000\times \frac{30}{100} =1000\times 0.3$

Total population after h hours is,

$1000(1+0.3)^h$

It is in the form of,

$P(t)=P_0(t)(1+r)^t$

Where $P_0(t)$ is the initial population, r is increasing rate, t is time and [tex(1+r)^t[/tex] is the growth factor after time t.

In the above equation 1000 is the initial population and $(1+0.3)^h$ is the growth factor after h hours. So the equation is product of of the initial population and the growth factor after h hours.