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

Soru 1:

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

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

Soru 2:

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

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

Soru 3:

Which of the following is a nominal scale type data?

A) Age B) Height C) Weight D) Gender E) Income

Soru 4:

The first role of Statistics is to reduce this mass of complex data to a simpler form in order to facilitate understanding and learning from the data. Words, SMSs, tweets, social media posts, verbal responses in questionnaires, these can all be treated as data. Climate data, measurements from tens of thousands of weather stations across the world, is an example of big data. Which of the above statements related to the data is correct?

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

Soru 5:

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

A) Biomedicine B) Transport C) Astrology D) Climate data E) Electronic commerce

Soru 6:

Commerce, especially online electronic commerce Finance, for example share prices on stock markets, all managed electronically Insurance, all the premiums, incidents, actuarial transactions in an insurance company Biomedicine, especially in genetics, where information is literally exploding as gene-sequencing reveals and codes the total genetic profile of a person Transport, for example in the airline industry, all the flights, all the passengers Climate data, measurements from tens of thousands of weather stations across the world In which of the areas above are big data mostly found?

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

Soru 7:

What type of variable is your heart beat?

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

Soru 8:

the individuals included in the study might be aware of this observer must record the events correctly data could be obtained over an extended period of time Which of the above is/are advantage(s) of observation method?

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

Soru 9:

A survey on married couples asked the following questions: "What is your gender? Woman or Man" Which type of data requested in the question?

A) A textual variable B) An ordinal categorical variable C) A continuous ratio-scale variable D) A nominal categorical variable E) A continuous interval-scale variable

Soru 10:

Summarize and interpret health data Decide on recruitment Analyse large sets of data from online purchases Check the financial transactions of a company Analyze the difference between sports matches Which of the above tasks are done by Statisticans?

A) II-IV B) I-II-III C) III-IV-V D) I-II-III E) II-III

Soru 11:

A scientist is studying on the yearly average temperatures in Celsius in last 100 years. What measurement type is s/he studying on?

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

Soru 12:

Age Hours of Sleep The Inflation Rate Gold Price Time to Run 100 meters Which of the above are interval-scale variables?

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

Soru 13:

What is the mode of the following data set with frequency in paranthesis? 15 (2), 30 (4), 35 (3), 40 (3), 95 (2)

A) 30 B) 35 C) 45 D) 60 E) 110

Soru 14:

A group of tourists entering Turkey Which country they come from How many days they plan to stay What their tourism objectives are Which of the above is/are case(s)?

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

Soru 15:

Which scales of measurement have the properties of classifying, magnitude, and equal intervals?

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

Soru 16:

28, 16, 14, 22, 12, 48, 10 What is the median of the given data set?

A) 14 B) 16 C) 21 D) 22 E) 28

Soru 17:

What is the disadvantage of arithmetic mean?

A) Influenced by outliers B) Usually it is a big number C) Usually it is a small number D) Can not be calculated for ratio level of data E) Can not be calculated for interval level of data

Soru 18:

Choose the appropriate pie chart for the bar graph above?

A) B) C) D)

Soru 19:

An English teacher wants to look into the effect of a certain teaching strategy on learning. Which is NOT TRUE about her study?

A) The researcher will conduct an observational study. B) The researcher will manipulate some of the variables. C) The researcher will apply randomization techniques. D) The researcher will record the effectiveness of the new strategy. E) The researcher will have experimental and control groups.

Soru 20:

Choose the appropriate bar chart for the given frequency table?