Seçmeli Ara Sınav - Statıstıcs I

Soru 1:

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

A) Minimum B) Maximum C) Average D) Most frequent E) Least frequent

Soru 2:

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?

A) 5 B) 9 C) 8 D) 6 E) 7

Soru 3:

A university student who successfully completed the course filled out the assessment questionnaire about the lecturer. What type of research method is mentioned here?

A) Observation B) Interview C) Self-enumeration D) Open-ended E) Frequency

Soru 4:

In the graphic above, the number of activities each student did is presented. What kind of a graphic is used to present this data?

A) Line chart B) Grouped bar chart C) Histogram D) Stacked bar chart E) Steam and leaf display

Soru 5:

Suppose that 100 students were asked what type of transportation they use to travel home. Using the student responses given in the table below, construct the pie chart of this data. Which of the response do you think take the smallest portion?

A) By car B) By bike C) By bus D) By tram E) On foot

Soru 6:

What type of data are tweets you write on Twitter?

A) textual data B) verbal data C) ordinal data D) scale data E) interval data

Soru 7:

We ask each customer to rank order the three brands by assigning number 1 to the most preferred brand. Customers assigns Number 2 to the next most preferred brand and so on. Which scale is used in this study?

A) Interval scale B) Ratio scale C) Ordinal scale D) Nominal scale E) Quantitative scale

Soru 8:

Typically used to compare counts, frequencies, categories etc. Represents the frequencies with rectangles by their lengths Depending on the variable type, it is possible to create many types of it Which of the following do these features represent?

A) Stem-and-leaf B) Dot plot C) Histogram D) Bar chart E) pie chart

Soru 9:

What is the mode of the following frequency distribution?

A) 15 B) 25 C) 35 D) 45 E) 75

Soru 10:

Commerce Insurance Transport In which ares above do big data set could be found?

A) Only I B) Only III C) I and II D) II and III E) I, II and III

Soru 11:

Which of the following is not data?

A) eyeglass B) 94.3 Mhz TRT 3 FM C) Anadolu University Statistics Department D) Anadolu University Yunus Emre Campus E) Porsuk river

Soru 12:

Frequently occurring words The lengths of sentences The number of words used just once Verbal responses in questionnaires Social media posts Which of the above need recoding in order to create quantitative variables?

A) I and II B) II and III C) IV and V D) I, II and V E) III, IV and V

Soru 13:

The number of workers in a certain factory is given below. What is the cumulative frequency of of workers whose age is less than 50? Age Range Frequency 20-24 50 25-29 40 30-34 35 35-39 20 40-44 25 45-49 20 50-54 10

A) 0.65 B) 0.675 C) 0.775 D) 0.8 E) 0.9

Soru 14:

Which of the following is not big data?

A) Anadolu University’s website’s visitor traffic B) internet browsing traffic in Anadolu University C) statistics I course book D) phone call traffic in Anadolu University E) Anadolu University’s library’s user traffic

Soru 15:

"Comparing the prices of a basket of products over time" is an example of .....?

A) interval-scale variable B) ratio-scale variable C) nominal categorical variable D) ordinal categorical variable E) qualitative variable

Soru 16:

Which of the following is not an component of data sets?

A) Element B) Variable C) Case D) Observation E) Analysis

Soru 17:

What is the arithmetic mean of the following data set? 4, 4, 6, 7, 8, 10, 11, 12, 18, 32

A) 4 B) 9 C) 9.5 D) 11.2 E) 17