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Ymorist [56]
3 years ago
9

a researcher wishes to know whether there is a significant difference in the number of knee injuries reported among four sports.

how many degrees of freedom are there for this chi-square analysis
Biology
1 answer:
boyakko [2]3 years ago
8 0

Answer:

Chi-square analysis cannot be used to check for significant difference in the number of knee injuries among four sports.

Explanation:

The chi-square analysis is a statistical procedure that is used to test association between measured variables or goodness of fits of a set of measured variables to expected outcomes.

<em>In the case of testing for significant difference, chi-square analysis cannot be used as testing for significant difference in two or more means requires using t-test, analysis of variance, or any other relevant statistical procedure.</em>

To compare number of knee injuries reported among four sports for significant difference, the most suitable statistical procedure would be analysis of variance.

<em />

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What is happening to boidiversity
Elis [28]

Biodiversity is rapidly declining across the globe.

Explanation:

The biodiversity across the globe has been under heavy blow, especially in the past few hundred years. The main reason for this are the humans. The humans with their activities have managed to destroy the habitats in lot of places, which in turn resulted in sharp decline in biodiversity. Also, some species have been systemically killed off, some because they have been considered as pests, some because they were used as a food source.

  • Naturally, the biodiversity tends to be at a sustainable level, while some species die out, other replace them.
  • In the more recent history though, there is a mass extinction occurring because of the humans activities, not because of natural causes.
  • With the growing human population the trend of destroying the environment continues and it will continue further in the future, with the biodiversity constantly going down and lot of species ending up being endangered or extinct.

Learn more about extinction https://brainly.ph/question/1300646 #learnwithBrainly

3 0
3 years ago
In the term 2pq of the Hardy-Weinberg equation. Why is the multiplication by two necessary?
Gnesinka [82]

Answer:

The correct answer is : option B.

Explanation:

Hardy–Weinberg equilibrium is a mathematical model that states that genotype percentage or frequency in a population and allele in a population remains stable or constant to generations if there are no evolutionary influences present.

Hardy Weinberg equation is :

            P²+2pq+q² = 1

Here, p² represents the frequency of genotypes dominant homozygotes (AA) in a population in equilibrium. The term 2pq represents the frequency of heterozygotes (Aa)  as there are two ways of developing heterozygous individuals either dominant from the egg and recessive from sperm or vice versa. and the term q² represents the frequency of recessive homozygotes (aa).  

Thus, the correct answer is : option B.

3 0
3 years ago
Your spinal cord works like a a0 wire, sending messages back and forth between your body and your brain.
mote1985 [20]
Your spinal cord works like a Telephone wire, sending messages back and forth between your body and your brain.
8 0
3 years ago
Read 2 more answers
Nearly all the mass of plants comes from well fertilized soil.<br> True or False?
babunello [35]
That is false because plants grow everywhere and I doubt anyone fertilized the Amazon rainforest


anyway ITS FALSE bro
5 0
3 years ago
Suppose a woman with haplotype L1 and a man with haplotype L2 have a son. The son then marries a woman with haplotype L3. If thi
-Dominant- [34]

Answer:

AA AT TT

GG AG AG AG TG TG TG

GC AG AC AG TC

ó

AC TG TG TC

CC AC AC AC TC TC TC

Explanation:

Haplotype research served to discover the origin of genetic mutations that today manifest as pathologies.

It is very important to know that there are no equal haplotypes in two or more different humans.

They are the allelic constitution of multiple loci for the same chromosome.

Furthermore, haplotypes are very good for studying population genetics.

I leave you a table that will help you for this exercise or many more, where the haplotype system is outlined.

8 0
3 years ago
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