Plants can see us. They can monitor their visible environment. They can see if you’re wearing a red or blue shirt. They know if you’re moving them from one place of your house to another. When you take a picture turning the flash on for a better and clearer image, …
Read More »Chernobyl, Covid-19 and Black Fungus
In the year 1986, a horrifying incident took place. It killed many instantly (who were very close to the nuclear reactor). As well as kept on affecting several many living beings including plants, wild and domestic animals. The extreme radioactive environment affected the people whoever was still living in that …
Read More »Test of Significance
Test of Significance The mathematical methods by which the probability of relative frequency of an observed difference occurring by chance, is found, are called tests of significance. It may be a difference between means or proportions of sample and universe or between the estimates of experiment and control groups. Thus, …
Read More »Future of Earth: Desert or Explosion of “Global Greening”?
In an ancient lake bed in the Southern Hemisphere, scientists studying fossil leaves found out the mechanism of the plants living during the Miocene Epoch. The world used to have an elevated level of carbon dioxide in the atmosphere. With an increased rate of carbon dioxide in the air, it …
Read More »Measures of Dispersion
Range The range consists of a bunch of data that shows the distinction between the highest and lowest values among the data set. So as to seek out the range, it’s necessary to first order the data from lowest to highest. Then we have to subtract the smallest value from the …
Read More »Organisation and Presentation of Data
There are two main methods of presenting data of a variable character or a variable. A) Tabulation/Tabular Presentation B) Drawing/Graphical Presentation Tabulation Tabulation is a device for presenting data from a mass of statistical data. Preparation of frequency distribution table is the first requirement for that. Tables are often simple …
Read More »Measures of Central Value: Mean, Median, Mode & Others
There are various methods to measure the central value of an observation. For instance, average, mean, median, mode, etc. Average The average value of a characteristic is the one central value around which all other observations are distributed. In any large series, nearly 50% of observations lie above the central …
Read More »Introduction to Biostatistics: Scope, Variable & Data
Objectives of this article To understand What is statistics What is biostatistics Scopes of statistics What is variable What is a random variable Types of variables What is a qualitative or discrete variable What is a quantitative or continuous variable Practical examples of qualitative or quantitative variables Read the next …
Read More »Introduction to Biostatistics: Population, Sample, Statistic & Parameter
Objectives of this article To understand What is a population? What is a sample? The differences between population and sample. What are parameter and statistic? The differences between parameter and statistic. What is sampling? What is random sampling? Importance of random sampling. The biases in sampling. Read the previous article: …
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