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, if this is not possible, then there are situations in which the mean, median, and mode have their specific advantages. The mean is ordinarily the preferred measure of central tendency. The mean is the arithmetic average of a distribution. The mean presented along with the variance and the standard deviation is the best measure of central tendency for continuous data. There are some situations in which the mean is not the best measure of central tendency. In certain situations, the median is the preferred measure.