. A1 a data file contains the following data, five households do not have cars (coded as 0); 20 households own a car (coded 1); 10 families have two cars (coded as 2). Statistics indicate which of the following applies to the description of the data and calculate the value of this statistic:
A. has a mode number of cars
B. has a median number of vehicles
C. has a variance of car
D. coefficient of variation
B2. To generate the sum of a given variable (i.e., "otal"), which should be selected summary statistics
A. mean
B. sum
C. median
D.mode
B3. Suppose the data shown in FIG, if necessary to obtain the mean value a, b, c of the three variables, and desired 3-45 was determined using the mean value of information data existing in the case of all possible values of the missing . In SPSS, select which function can meet the requirements
A. mean(a,b,c)
B. mean.2(a,b,c)
C. mean2(ab,c)
D.(a+b+c)/3
4. (graphic) menu again to make statistical graphics section 3.6, compare these two methods to draw the similarities and differences of statistical graphics
5. noted that the median number average of all the three describe the difference and advantages and disadvantages of index data center trends
6. explain the difference between leaf and histograms, if you want to show the information of the original data as much as possible, what kind of graphics should be used?
7. DESCRIPTION difference histogram and other categories of FIG.
FIG Pareto adapted to classify the data, which is a sort bar; scale data applied to the histogram
. A8 pointed out that indicators which measure of central tendency suitable for describing the following attributes, if there are two or more indicators can, please indicate which indicators may reflect more information:
A. The number of brothers and sisters
B. driving the car type
C. father's body weight
D. the number of days leave per year
. C9 upper body for the four variables, respectively, which can be described in the following statistical pattern:
A. Histogram
B. bar
C. Pareto chart
10. The management of a company's minority employees have particularly high wages, most of the staff to take low wages. If you represent a company bosses and employees to negotiate a raise, then you tend to use a statistical indicators which explain the low wages? And if you are the boss, which you tend to use a statistical indicators to illustrate the already high wages
The number or weight median: mean
11. FIG phase can detect outliers in the data. Data 'DisasterReason.sav' descriptive statistical analysis, whether there is an abnormal value in the data analysis phase diagrams