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

Soru 1:

Which of the following is not true for dot plots?

A) Before creating a dot plot, lowest and highest values should be identified first B) It is a simple chart that keeps each observation as a dot along horizontal axis C) Repeating occurrences are represented as dots along horizontal axis D) The data itself is kept within the graph so, its value could easily be identified by looking at the graph E) It helps the researcher to quickly order the data

Soru 2:

Which of the following is not done by using statistics?

A) weather forecast B) gain estimation C) process time prediction D) exam grade classification E) password validation

Soru 3:

What is the arithmetic mean of the following data set with frequency in paranthesis? 20 (3), 32 (4), 47 (2), 10 (3)

A) 18 B) 26 C) 32.5 D) 36 E) 40.5

Soru 4:

There are four participants in our research and their names are Tom, Jane, Tim and Beth. We assign arbitrarily 1 for Tom, 2 for Jane, 3 for Tim and 4 for Beth. Which word below describes the meaning of number 4 in our research?

A) case B) nominal data C) numeral D) observation E) ordinal scale

Soru 5:

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 .......?

A) Trimmed mean B) Geometric mean C) Arithmetic mean D) Harmonic mean E) Midrange

Soru 6:

A teacher labels students successful, average and unsuccessful based on their exam marks. What form of data does s/he produce?

A) nominal B) ordinal C) interval D) ratio E) continuous

Soru 7:

What is the median of the following data set? 4, 4, 4, 5, 7, 8, 10, 14, 18, 20, 26, 30

A) 4 B) 9 C) 17 D) 30 E) 34

Soru 8:

A study which aims to find some evidence of a result A study which aims to find causes of a result A study in which the groups are “balanced” in terms of known factors A study conducted where conditions are controlled Which of the above can be given as an example/examples of observational studies?

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

Soru 9:

A national sport committe decides to impose stricter conditions for athletes to enter the tournament. One year later, athletes obtain scores that are in general better than those the year before. Which of the following can be considered valid conclusions:

A) The increase in scores might be attributable to the introduction of stricter entry conditions. B) The imposition of stricter entry conditions caused the increase in scores. C) The imposition of stricter entry conditions could not possibly have caused the increase in scores. D) There is not enough information, we need to collect more data. E) We cannot conclude anything either way.

Soru 10:

Which of the following is not data?

A) Anadolu University B) Statistics Department C) Statistics I course D) Anadolu University students E) Anadolu University campus

Soru 11:

“It gives the researcher a chance to create a grouped frequency distribution of the data without using any formula” Which of the data presentation visual is mentioned in this sentence?

A) Dot Plot B) Histogram C) Pie Chart D) Stem-And-Leaf Display E) Scatter Plot

Soru 12:

According to the data set given in the following table, what constitutes the case for John?

A) Male B) 52, 4300 C) Female, 52 D) Male, 52, 4300 E) Male, 45, 10000

Soru 13:

In a research investigating the effects of playing online games on aggressive behavior, 100 teenagers are observed. What statistical term represents these 100 teenagers in this particular experiment?

A) population B) data C) sample D) variable E) scale

Soru 14:

Which one of the following stem-and-leaf plot represents the data displayed in the Table above?

A) B) C) D)

Soru 15:

Which of the following is true for a left-skewed distribution as shown in figure?

A) Mean=Mode=Median B) Mean=Median C) Mean D) Mean>Median>Mode E) Mean

Soru 16:

I. It is defined as the tendency of data to cluster around some random variable value. II. Some central tendency measures are arithmetic mean, median and mode III. Central tendency measures can tell us details about every piece of data. What can be said to be true about central tendency measures?

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

Soru 17:

Is your answer to this question data?

A) No B) Yes C) Maybe D) Sometime E) It depends on time

Soru 18:

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

A) 275 B) 400 C) 550 D) 700 E) 900

Soru 19:

Statistical analysis requires that the factual information of interest in a research be collected and organized in a useful manner. Which one below refers to such facts?

A) Element B) Data sets C) Data D) Variable E) Case

Soru 20:

"Which type of transportation vehicle do you use most often? Answer:.............................................................." Which type of questionnaire question is the one above?

A) Multiple Response B) Single Response C) Open-Ended D) Closed-Ended E) Ranked