Deneme Sınavı Soruları

1. Typically used to compare counts, frequencies, categories etc.
2. Represents the frequencies with rectangles by their lengths
3. Depending on the variable type, it is possible to create many types of it

Which of the following do these features represent?

Which of the following cannot be considered as a field of big data?

Customers asked to respond to the following statement. “The picture quality of your TV is satisfactory”. Customers responded to the statement as 1=Strongly Disagree, 2=Disagree, 3=Undecided, 4=Agree, and 5=Strongly Agree.

If the measurement categories and the number of responses within a given measurement category are used, what method of data organization is implemented in the case specified above?

Which pie chart is the correct one to analyze the data presented in the table below? 

The frequency distribution table of the students’ performance scores of a school were constructed as follows. What is the ratio of the students whose score under 80?

A researcher believes that playing piano is the explanation for increased mathematics academic success.  In order to get an understanding on this, the researcher collected data by conducting a survey, asking elementary students his or her level of math ability (grades) and whether they play a piano or not.

Which of the following statements about the research is wrong?

I- IQ levels (intelligence scale)
II- Weights of newborn babies
III-Monthly Income
IV-Types of blood such as A, B, AB and O
V-Level of Agreement: yes, maybe, no

In which of the variables given above, the level of measurement is ratio?

Which of the following can be used to display the trends in continuous data over a period of time?

What is the median of the following data: 2, 4, 4, 4, 5, 6, 7, 7, 8, 10?

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

Which of the following scales have a natural or zero-valued base that cannot be changed?

1. The relation between two sets of data
2. The most repeating observations
3. Summary statistics (min, max, mean, median etc.)

Which of the above could be identified using graphics?

1. Blood pressure
2. A verbal response
3. Number of supermarket visits
4. Purchased products
5. Course grade

Which of the above are statistical variables?

1. A market researcher's surveying customers
2. A teacher's qualitative inquiry of motivation
3. A psychologist's measure of addiction level

Which of the above is/are basic interest of statistics?

1. the individuals included in the study might be aware of this
2. observer must record the events correctly
3. data could be obtained over an extended period of time

Which of the above is/are advantage(s) of observation method?

What type of variable is your weight?

What is mode?

1. Commerce, especially online electronic commerce
2. Finance, for example share prices on stock markets, all managed electronically
3. Insurance, all the premiums, incidents, actuarial transactions in an insurance company
4. Biomedicine, especially in genetics, where information is literally exploding as gene-sequencing reveals and codes the total genetic profile of a person
5. Transport, for example in the airline industry, all the flights, all the passengers
6. Climate data, measurements from tens of thousands of weather stations across the world

In which of the areas above are big data mostly found?