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İST209U

İSTATİSTİK I - Deneme Sınavı - 4

Ara Sınav 47367
Soru 1

Consider the pie chart constructed based on the data presented above. What is the angle of the studying?

Soru 2

The graph represents the data of the number of vehicles registered in traffic by year. Purple line represents the 2017 data and maroon line represents the 2018 data. According to this graph, which of the following is the month when most vehicles are registered to traffic in 2018?

Soru 3

The graph represents the data of the number of vehicles registered in traffic by year. Purple line represents the 2017 data and maroon line represents the 2018 data. According to this graph, which of the following is the month when nearly equal number of vehicles are registered both in 2017 and 2018?

Soru 4

According to the stem-and-leaf plot above, what is the range of the data?

Soru 5

Retrieved from https://ourworldindata.org/quality-of-education

The following plot represents the relation between the PISA reading scores and the United Nations' Human Development Index (HDI) for a select group of countries.

According to the scatterplot above and considering straight line that indicates relationship, which one of the following is true?

Soru 6
To create a histogram for continuous data, sort the steps written above? 
Soru 7

The graph shows the electricity, water and ADSL bills of a family. Which one of the following can be deduced, based on the data?

Soru 8
Mode is the.......value in a data set.

Which of the following correctly fills in the blank in the sentence above?

Soru 9
What happens to arithmetic average of a data set if all observations are increased by 4?
Soru 10
Which of the following is true for a left-skewed distribution as shown in figure?

Soru 11
The ages of children in a park are given as 10, 4, 8,10, 5, 6, 4, 5, 8,9. What is the median age of this group of children?
Soru 12

The data on weight distribution of a certain group of men is given on the table above. What is the mean weight for this group?

Soru 13

The exam scores of 5 students taking the statistics course are given above. The weight of midterm exam is 40% and the weight of final is 60%. What will be the weighted average score of this group?

Soru 14
What is the geometric mean of the data set A=(6, 8, 9, 16, 36)?
Soru 15

Bicycle types and their prices in a certain shop are given above. What is the midrange of the bicycle prices?

Soru 16
A researcher wants to calculate the average income for a large group of people but he notices that there are a few extremely low and extremely high income levels. Thus he decides to find the average after eliminating the extreme values. In this case the researcher computes ........

Which of the following correctly fills in the blank in the sentence above?

Soru 17
Which of the following statements is true?
Soru 18
What is the mode of the following data set?

10, 19, 11, 26, 26, 26, 18, 20, 35, 99, 11, 14, 18, 18, 26, 20, 48

Soru 19
What is the median of the following data set?

4, 4, 4, 5, 7, 8, 10, 14, 18, 20, 26, 30

Soru 20
What is the midrange of the following data set?

10, 19, 11, 26, 26, 26, 18, 20, 35, 98, 11, 14, 18, 18, 26, 20, 48