Table of Contents
- 1 Do natural phenomena such a hemoglobin or the weight of ants really follow a normal distribution Why or why not?
- 2 Do hemoglobin levels follow a normal distribution?
- 3 Why do so many different phenomena have normal distribution?
- 4 How large a number makes a normal distribution?
- 5 What percentage of the area falls below the mean above the mean?
Do natural phenomena such a hemoglobin or the weight of ants really follow a normal distribution Why or why not?
Natural phenomena do follow normal distribution, but not all. Also the data should be homogenous and without any tampering.
Do hemoglobin levels follow a normal distribution?
Weights of ants or Haemoglobin counts for large data sets are expected to follow the normal distribution. Reason: Hence, both the weights of ants and haemoglobin are said to follow Normal distribution.
Do natural phenomena follow a normal distribution?
Many natural phenomena in real life can be approximated by a bell-shaped frequency distribution known as the normal distribution or the Gaussian distribution. Last but not least, since the normal distribution is symmetric around its mean, extreme values in both tails of the distribution are equivalently unlikely.
What things in nature follow a normal distribution?
For example, heights, blood pressure, measurement error, and IQ scores follow the normal distribution. It is also known as the Gaussian distribution and the bell curve.
Why do so many different phenomena have normal distribution?
The Normal Distribution (or a Gaussian) shows up widely in statistics as a result of the Central Limit Theorem. Specifically, the Central Limit Theorem says that (in most common scenarios besides the stock market) anytime “a bunch of things are added up,” a normal distribution is going to result.
How large a number makes a normal distribution?
The standard normal distribution has two parameters: the mean and the standard deviation. For a normal distribution, 68\% of the observations are within +/- one standard deviation of the mean, 95\% are within +/- two standard deviations, and 99.7\% are within +- three standard deviations.
How many polypeptide chains does Haemoglobin?
four polypeptide chains
A hemoglobin molecule is made up of four polypeptide chains, two alpha chains of 141 amino acid residues each and two beta chains of 146 amino acid residues each.
What does it mean when data is not normally distributed?
Collected data might not be normally distributed if it represents simply a subset of the total output a process produced. This can happen if data is collected and analyzed after sorting.
What percentage of the area falls below the mean above the mean?
Regardless of what a normal distribution looks like or how big or small the standard deviation is, approximately 68 percent of the observations (or 68 percent of the area under the curve) will always fall within two standard deviations (one above and one below) of the mean.