An urn includes white and black balls. if a random sample of length is chosen, the probability that it consists of exactly white balls: 
Sample area = M + N
we are choosing r balls from the pattern space
So the possibility of having the exactly white ball is ok which means the okay of decided on balls is black
So the probability is 
Probability is honestly how probable something is to manifest. each time we are unsure about the final results of an event, we will talk about the probabilities of certain results—how in all likelihood they're. The analysis of activities governed via probability is referred to as information.
Probability is the branch of mathematics concerning numerical descriptions of ways in all likelihood an occasion is to occur, or how in all likelihood it's miles that a proposition is proper. The opportunity of an occasion is more than a few between zero and 1, in which, more or less talking, 0 suggests the impossibility of the occasion and 1 shows reality.
Probability = the number of methods of achieving achievement. the full number of feasible effects. for instance, the possibility of flipping a coin and it being heads is ½, due to the fact there may be 1 manner of getting a head and the whole wide variety of viable consequences is two (a head or tail).
Learn more about probability here: brainly.com/question/24756209
#SPJ4
I think E ww1 but correct me if I’m wrong :)
It will help the community pay less for there electric bills
Answer:
Macrosociology
Explanation:
Macrosociology
This is mostly defined on a large scale perspective. It is simply viewing big outcome that is said to affect big portion of population. Such as Social structures and institutions, whole civilizations/populations. It is the looking for patterns and effects the incidence has on lives on small groups. It also deals with matters like poverty, war, health care, world economy.
It is also defined as a means or approach to sociology which capitalizes or is based on the analysis of social systems and populations on a large scale, also at the level of social structure, and at high level of theoretical abstraction.
Conflict theory.
A Marxist-based social theory stated that individuals and groups (social classes) within society have different amounts of material and non-material resources (such as the wealthy and the poor). He stated that the more powerful groups use their power in order to exploit groups with little power.
That statement is False
The minnesota twin study followed BOTH identical and Fraternal Twins who were separated in early ages. This study is conducted to found out the importance of environmental and genetic factors for the development of an individual.