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1、统计学课程设计（Course design of Statistics）Course design of StatisticsClass China World Trade Center 091Number 209090407The name of Zhang WenjunDecember 2011 1 / 19The first part is the chart presentation of the data1.01 random and quality evaluation of household electrical appliance service industry cust
2、omer service from a sample composed of 100 families. Service qualityThe level of A. B. expressed as C. better D. E. poor respectively. The survey results are shown in the following table. Requirements1. Pointed out that the above data belongs to what type of2. Excel making use of a frequency distrib
3、ution table3. Draw a bar chart and reflect the distribution of rating. BE, C, C, A, B, D, A, C, ED, A, C, B, C, C, D, E, E, EA, D, B, C, C, D, A, C, B, EB, A, C, D, E, D, A, D, C, BC, B, C, E, D, C, B, B, C, CD, A, C, B, C, C, D, E, B, EB, E, C, C, A, B, D, A, E, CB, A, C, D, E, D, A, D, C, BA, D, B
4、, C, C, D, A, C, B, EC, B, C, E, D, C, B, B, C, CThe solution 1. Sequence data2.Quality of service grade frequency distribution table quality of service gradeFrequency frequency%A 1414, B2121 C 3232 D 1818 E 1515 (3) bar graphZeroTwentyFortySixtyEightyOne hundredOne hundred and twenty12345 totalLeve
5、l frequency 0%20%40%60%80%100%120%frequencyW 2 / 19Product sales revenue data million units. 1.02 an industry management bureau belongs to 40 enterprises in 2002 see table 3.02.Requirements1) the appropriate group and preparation and frequency distribution table and calculates the cumulative frequen
6、cy and cumulative frequency according to the above data2) if required sales income of more than $1 million 250 thousand for the 115 advanced enterprises 1 million 250 thousand yuan for the good enterprise 1051 million 150 thousand yuan for 1 million 50 thousand yuan for general enterprises and backw
7、ard enterprises and advanced enterprises, according to the good enterprise and general enterprise and fallThe enterprise is grouped. One hundred and fifty-two1031051361051031231461171371161279713811513512492110117119118115113108120100104881128712512995107108114142119126Solution (1)Grouped by salesMi
8、llion yuan.Number of enterprisesA.frequency%.Cumulative downward accumulationEnterprise frequency enterprise frequency100 below100 110110 120120 130130 140More than 140FiveNineTwelveSevenFourThreeTwelve point fiveTwenty-two point fiveThirtySeventeen point fiveTenSeven point fiveFiveFourteenTwenty-si
9、xThirty-threeThirty-sevenFortyTwelve point fiveThirty-fiveSixty-fiveEighty-two point fiveNinety-two point fiveOne hundredFortyThirty-fiveTwenty-sixFourteenSevenThreeOne hundredEighty-seven point fiveSixty-fiveThirty-fiveSeventeen point fiveSeven point fiveAdd up to 40100 - -(2)According to the sales
10、 income million yuan.The number of enterprises. A frequency%.Advanced enterpriseGood enterpriseGeneral enterpriseBackward enterpriseElevenElevenNineNineTwenty-seven point fiveTwenty-seven point fiveTwenty-two point fiveTwenty-two point fiveTotal 40100W 3 / 191.03 the age division data of 12000 stude
11、nts attending an adult self taught Examination in a test management center in 2002 are listed below.1) for this age distribution histogram2) the characteristics of age distribution of adult self taught examination personnel are analyzed by histogram. Age%1819 1.92121 34.72224 34.12529 17.23034 6.435
12、39 2.74044 1.84559 1.2The solution 1. 2002 adult self-study examination of the age distribution histogramZeroFiveTenFifteenTwentyTwenty-fiveThirtyThirty-fiveFortyThe age ratio of% 1819.21212224252930343539404445592. From here you can see that the age distribution and the 2002 adult examination is as
13、ymmetric. Among them, 22-24 and 21-22Age candidates are the most. The right tail than the left tail minister. The shape of this age distribution is close to the right deviationCloth.1.041978 1999 Chinas GDP data are as follows (at current prices and unit billion yuan) shown in the table below.1. Exc
14、el rendering with GDP chart2. First, second, third industry GDP chart3. According to the 1999 gross domestic product and its composition data and draw a pie chart. W 4 / 19The solution 1. Gross domestic product line chartZeroTwenty thousandForty thousandSixty thousandEighty thousandOne billion one thousand nine hundred and seventy-eightOn
