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.
However, in this situation, the mean is widely preferred as the best measure of central tendency because it is the measure that includes all the values in the data set for its calculation, and any change in any of the scores will affect the value of the mean. This is not the case with the median or mode.