İST209U
İSTATİSTİK I - Deneme Sınavı - 10
Dönem Sonu Sınavı
47372
Soru 1
Which of the following is not true about percentiles?
Soru 2
Which of the following is not true about box plot?
Soru 3
The data set: [20,20,20,25,25,30,35,35,40,40,45,45] What is the interquartile range of the data set above?
Soru 4
Which of the following is not true about skewness?
Soru 5
The observations are as follows; [14,15,15,16,17,18,20,21,20]
Which of the following is the Pearson’s coefficient of skewness (PCS) value of the data set above?
Soru 6
The number of the book read by the students in a year as follows; 10,11,11,12,14,17,18,19,20.
What is the range of the given data above?
Soru 7
The exam points of the students in a math class as follows;
45,53,67,74,88,88,95,95,100.
Which of the following is the standard deviation of the data?
Soru 8
The height of the students in a class as follows;
155, 156, 157, 160, 162, 165, 170, 180.
Which of the following is the median of the given data?
Soru 9
The box plot is given above shows the data about the number of hours spent on watching tv a day by students in a school.
Which of the following is not correct about the box plot data?
Soru 10
During a sales season, the five salesmen in a mobile phone company sold the following numbers of mobile phone: 9, 15, 8, 24, 30. What is the range of the number of sold mobile phones?
Soru 11
A farming company collected data about the amount of wheat (tons) sold in the last week. The data is as follows, 12, 35, 14, 25, 24, 40, 25. What is the mean of this data set?
Soru 12
A farming company collected data about the amount of wheat (tons) sold in the last week. The data is as follows, 12, 35, 14, 25, 24, 40, 25. What is the standard deviation of the data set?
Soru 13
The frequency distribution table of the students’ performance scores of a school were constructed as follows. What is the sample mean of the data?
Soru 14
The frequency distribution table of the students’ performance scores of a school were constructed as follows. What is the sample standard deviation of the data?
Soru 15
The standard deviation of the students’ performance scores data is 20. What is the variance of the data?
Soru 16
A bakery employs 10 people. The number of years’ experience that the employees of the company have is the following: 0, 0, 2, 4, 5, 8, 15, 17, 20, 24. What is the 50th percentile of the data?
Soru 17
Which class interval is containing the median?
Soru 18
A bakery employs 10 people. The number of years’ experience that the employees of the company have is the following: 0, 0, 2, 4, 5, 8, 15, 17, 20, 24. What is the 80th percentile of the data?
Soru 19
A bakery employs 10 people. The number of years’ experience that the employees of the company have is the following: 0, 0, 2, 4, 5, 8, 15, 17, 20, 24. What is the interquartile range of the data?
Soru 20
Which of the followings is not true regarding "range"?