Medical Statistics（医学统计学）答案2023

第一章测试

1.Which of the following belongs to continuous numerical variable?（ ）
A:age B:gender. C:country D:blood type
答案:A
2.What is the range of probability P for a random event? （ ）
A:-1≤P≤1 B:0≤P≤1 C:P =1 D:-1≤P≤0
答案:B
3.Which of the following cannot be avoided during sampling? （ ）
A:sample size is too large B:sample size is too small C:sampling error D:personal error
答案:C
4.Low, median and high belong to _____? （ ）
A:Ordering data B:Measuring data C:Raw data D:Counting data
答案:A
5.Which of the following belongs to discrete numerical variable ________? （ ）
A:Number of children in a family B:Cancer degree C:Weight D:Height
答案:A
6.Which one of the following variables is not categorical? （ ）
A:Choice on a test item: true or false. B:Gender of a person: male or female. C:Marital status of a person (single, married, divorced, other) D:Age of a person.
答案:D
7.Which of the following belongs to the measurement data ________. （ ）
A:gender B:curative effect C:WBC counts D:blood type
答案:C
8.Which of the following belongs to categorical variable ________. （ ）
A:days staying in hospital B:heart rate C:score of IQ D:gender of people in a specific region.
答案:D