Statıstıcs I (ENG)
2018–2019 Vize (Ara Sınav) Çıkmış Soruları
- 20 soru
- Cevap anahtarı açık: çöz, sonucunu gör
- 1
In order to prove that aspirin is the cause of the improvement in health, what needs to be conducted?
- 2
Which of the following is included in Data Science?
- 3
------- are the entities on which the data are collected.
Which of the following completes the sentence above?
- 4
What is the level of measurement of the variable “Gender”?
- 5
What is observation?
- 6
Which of the following data collection methods is used when “individuals answer the questions printed on a questionnaire paper”?
- 7
The contingency table above is created for age and gender variables for a group of students in a campus refectory.
What is the percentage of male students who are between 23-27 years of age?
- 8
15, 17, 8, 9, 2, 25, 23, 22, 35, 1, 2, 45, 36, 44, 35, 15, 18, 8, 9, 18
If you draw the dot plot for the data above, what is the value of the highest extreme data point?
- 9
5, 7, 1, 2, 2, 23, 24, 25, 23, 12, 14, 17, 15, 32
Which of the following is the true stem-and-leaf display for the set of observations above?
- 10
Carefully study the bar chart given, how many observations are there in this bar chart?
- 11
If you study carefully the histogram above, what do you think about the distribution of this variable?
- 12
A company made different number of sales to different cities in Turkey for a specific product (such as printing machine). A pie chart of the number of products sold is given above.
What is the highest relative frequency for the pie chart?
- 13
1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 9
What is the mode of the sample above?
- 14
Price
Frequency
80
40
100
60
120
70
130
55
160
35
Total
260
What is the median of the frequency distribution above?
- 15
Size
Frequency
110
10
160
22
170
35
220
42
300
16
Total
125
What is the arithmetic mean of the frequency distribution above?
- 16
15, 12, 17, 8, 9, 19, 25, 41, 45, 28
What is the arithmetic mean of the data set above?
- 17
1, 2, 2, 4, 5, 7, 8, 8, 9, 9
What is the 10% trimmed mean of the sample above?
- 18
Why Statistics is a key necessity to humankind today?
- 19
What is the first role of statistics?
- 20
What type of data is “income”?
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