Who played an impotlant role in the early development of Luciano ' s business?[ A] His
Who played an impotlant role in the early development of Luciano ' s business?
[ A] His father.
[ B ] His family.
[ C] Princess Diana.
[ D] A photographer.
Who played an impotlant role in the early development of Luciano ' s business?
[ A] His father.
[ B ] His family.
[ C] Princess Diana.
[ D] A photographer.
Descriptive statistics involves tabulating, depicting, and describing collections of data. These data may be either quantitative, such as measures of height, intelligence, or grade level—variables that are characterized by an underlying continuum or the data may represent qualitative variable, such as sex, college major, or personality type.
Large masses of data must generally undergo a process of summarization or reduction before they are comprehensible. Descriptive statistics is tool for describing or summarizing or reducing to comprehensible form. the properties of an otherwise unwieldy mass of data.
Inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind. This general class of problems characteristically involves attempts to make predictions using a sample of observations. For example, a school superintendent wishes to determine the proportion of children in a large school system who come to school without breakfast, have been vaccinated for flu, or whatever. Having a little knowledge of statistics, the superintendent would know that it is unnecessary and inefficient to question each child; the proportion for the entire district could be estimated fairly accurately from a sample of as few as 100 children. Thus, the purpose of inferential statistics is to predict or estimate characteristics of a population from knowledge of the characteristics of only a sample of the population.
Which of the following are counting and describing associated with?
A.Descriptive statistics
B.Unknown variables
C.Qualitative changes
D.Inferential statistics
A、Tiene
B、Tendrá
C、Tengo
D、Tuvo
[A]It' s not as good as it was.
[ B]It' s better than it used to be.
[ C] It ' s even worse than people say.
[ A] His friend died.
[B] His friend was well.
[C] His friend was beer.
[A]to meet you
[ B] to have met you
[ C] meeting .
[ D] having met you
[ A]A record.
[B]A new pen.
[C]A box of chocolates.
[ A] both they
[ B ] both of them
[ C]they both
[ D]both of whom
[ A] They feel that everything on the screen is familiar to them.
[ B ] They try to turn their dreams into reality.
[ C] They become so involved that they forget their own problems.
[ D] They are touched by the life stories of the actors and actresses.
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