Bt is toxic to many of the insects that can disrupt a farming operation. Itâs widely used as a biological pesticide and, in fact, Bt is the most widely used biological pesticide in the world.esearch has shown that the Bt toxin persists in the gastrointestinal tract of human-flora-associated rats weeks after exposure. Research has shown that Bt has a toxic effect on the lungs and other organs. In rare cases, Bt can even wreak havoc on the eyes, causing severe irritation and even blindness.
The most commonly used measure of central tendency is the mean. It is obtained by finding the sum of all data items and then dividing it by the number of items. Use the mean to describe the middle of a set of data that DOES NOT have an outlier.
Another commonly used measure of central tendency in specific cases is the mode. The mode is simply the most commonly occurring value. For example, in a class of 50 students graded on a scale of 1-5, the distribution may be as shown in the figure. The mode of this data is 4. Different types of data need different measures of central tendency to describe the distribution of data. For highly skewed data, none of these may be sufficient, and we may need to go for other specialized measures or simply report them all in a table. Learn More.