Statıstıcs I Çıkmış Sorular, Online Deneme Sınavları, Çalışma, Dersler, Sınava Hazırlanma, vize, final

Soru 1:

In the graphic above, the number of activities that five students did during a semester is present in a grouped bar chart. According to this data, which student attended the most concerts?

A) Jack B) Mary C) Liam D) Amanda E) George

Soru 2:

What is Biostatistics ?

A) Statistics in Biology research B) Statistics in Medical research C) Statistics in Biometry research D) Statistics in Biochemistry research E) Statistics in Social research

Soru 3:

What is the underlying reason of using closed-ended questions rather than open-ended question in many surveys?

A) Gathering more detailed data B) Obtaining higher response rates C) Being easier to read D) gathering more accurate data E) Making responder think deeper

Soru 4:

What is the arithmetic mean of the following data set with frequency in paranthesis? 25 (3), 35 (3), 45 (2)

A) 32.5 B) 35 C) 37.5 D) 40 E) 82.5

Soru 5:

For an observation that results in values 4,2,6,7,3,4,3,5,6,6,3 what is the mode of this group?

A) 3 B) 4 C) 6 D) 3 and 4 E) 3 and 6

Soru 6:

I. Most frequent value(s) is the arithmetic mean II. Middle number in ordered data by magnitude is the median III. Average number of values is the mode Which of the definitions about central tendency measures is true?

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

Soru 7:

What type of variable is your weight?

A) qualitative nominal B) qualitative ordinal C) quantitative ratio D) quantitative interval E) continuous regular

Soru 8:

What type of data presentation method is described in the sentences below? It is useful to determine a vague point for location of center and spread of data. It is not useful for large sizes of data. To use this type of slot, one needs to identify the lowest and the highest value of the data set first.

A) Dot Plot B) Bar Chart C) Scatter Plot D) Histogram E) Pie Chart

Soru 9:

For an observation that results in values 6,7,3,4,3,5,6,6 what is the arithmetic mean of this group?

A) 4 B) 4,5 C) 5 D) 5,5 E) 6

Soru 10:

Blood pressure A verbal response Number of supermarket visits Purchased products Course grade Which of the above are statistical variables?

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

Soru 11:

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?

A) 1 B) 2 C) 5 D) 7 E) 10

Soru 12:

Inflation rate, which compares the prices of a basket of products over time, is a _______ variable. Which of the following correctly fills the blank above?

A) Interval-scale B) Nominal-scale C) Ratio-scale D) Ordinal-scale E) Categorical-scale

Soru 13:

Which of the followings could be a measure of a ratio scale?

A) students' ranking in a class B) different classes of same level C) degree of attitude towards science class D) gender of students in a class E) weights of students in a class

Soru 14:

Which of the following is true about relative frequency distribution table?

A) It could be easier or clearer to interpret the table when using percentage of the frequency B) It provides information of how many observations occurred for each value C) It is more appropriate to use when data set is too large D) It is better to use if measurement is obtained using ratio scale E) It is used to determine the number of elements that falls above or below a particular value

Soru 15:

What type of variable is your answer to a job offer?

A) continuous regular B) quantitative ratio C) quantitative interval D) qualitative nominal E) qualitative ordinal

Soru 16:

In a research investigating the effects of playing online games on aggressive behavior, 40 teenagers at the age of 10 plays 4 hours of violence games and 40 teenagers at the age of 10 does not play any video games. What type of research is this research?

A) observation B) statistical C) case D) experimental E) single-case

Soru 17:

Which of the following is not data?

A) face photo B) 100 kg C) 50 % D) Eskişehir E) address

Soru 18:

Which of the following terms stands for errors caused by unknown and unpredictable factors?

A) Systematic error B) Random error C) Measurement error D) Specification error E) Sampling error

Soru 19:

150, 95, 35, 42, 110, 60 What is the arithmetic mean of the given data set?

A) 60 B) 75 C) 80 D) 82 E) 95

Soru 20:

An employee is given a survey where he is given three options like "Agree", "Undecided", and "Disagree". What type of responses does he need to give?

A) Close-ended responses B) Ranked responses C) Rated responses D) Multiple responses E) Single responses