Question 3 o a doctor used a new drug to cure 5 AIdS patients 4 of them are cured o Conclusion The cured rate of this drug was 80% Is his conclusion right? Why or why not?
⚫ A doctor used a new drug to cure 5 AIDS patients. 4 of them are cured. ⚫ Conclusion: The cured rate of this drug was 80%. Question 3 ？ Is his conclusion right? Why or why not?
a knowledge of statistics is like a knowledge of foreign languages or of algebra; it may prove of use at any time under any cIrcumstances A.L. Bowley
A knowledge of statistics is like a knowledge of foreign languages or of algebra; it may prove of use at any time under any circumstances. A.L. Bowley
SOME BASIC CONCEPTS ①Data @2 Statistics and biostatistics ③ Population and sample ④ Variable 5 Parameter and statistic ⑥ Probability
II. SOME BASIC CONCEPTS ① Data ② Statistics and biostatistics ③ Population and sample ④ Variable ⑤ Parameter and Statistic ⑥ Probability
①DATA v Definition The raw material of statistics is data For our purses we define data as numbers √ Sources of data Routinely kept records Surveys EXperiments External sources
① DATA ✓ Definition: The raw material of statistics is data. For our purses we define data as numbers. ✓ Sources of data: Routinely kept records Surveys Experiments External sources
①DATA Routinely kept records Hospitals keep day-to-day records, which contain immense amounts of information on patients. When the need for data arises, we should look for them first among routinely kept records
① DATA Routinely kept records. Hospitals keep day-to-day records, which contain immense amounts of information on patients. When the need for data arises, we should look for them first among routinely kept records