Application of mathematical statistical method on SO_4~(2-) control in primary brine;

A mathematical statistical method was used to compute the minimum probe vehicles sample size on one segmental road,and the consistent rate of road\'s minimum probe vehicles number was used to evaluate the equality of traffic information.

According to preparation before proportion design, it analyzes difference between mathematical statistics method with non-mathematical statistics to evaluate strength of concrete,and discusses regulation and control measures of concrete proportion to design reasonable concrete proportion.

In this paper, we make medium-term forcasts for the household consumptiou structure of our country s cities with mathematical statistics method.

mathematical statistics methods in this paper.

The conditional test to measure iron by means of O-phenanthroline spectrophotometry and the standard curve are improved with mathematical statistics.

It is analyzed the determined data in recent two years of elements of carbon,silicon,manganese,sulphur,phosphorus in iron and steel in ways of content range and permit error with mathematical statistics,the new elements error-detecting range built in a base being scientific and able to meet demand of production.

The application of mathematical and statistical methods in fisheries research in China began in the late 1950s, developed in the 1960s to the 1980s and went into a new stage in the 1990s.