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İST209U

Statıstıcs I (ENG)

Deneme Sınavı Soruları

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0 doğru · 0 yanlış · 20 kaldı
  1. 1

    The frequency distribution of the students’ weights was constructed as the following table. Consider the grouped data table, what is the ratio of the students whose weights are above 65?

  2. 2

    Which one of the following is an average number of values?

  3. 3

    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?

  4. 4

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

  5. 5

    According to the contingency table below, what are the percentage of male and female respectively within the people who do not have technical knowledge (No)? 

  6. 6

    What cannot be an example showing that statistics is part of our daily lives?

  7. 7

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

  8. 8

    Which of the following matches is wrong?

  9. 9

    Your professor asked you to write an essay and stated that you would be assessed for the count of words in your essay. What form of numerical data would s/he study on?

  10. 10

    An advertisement company conducts a survey on parfume preferences of adults in a city in which the half of the population is female. The researcher collects a sample of 200 people of whom 170 are male.

    What type of error does the researcher make?

  11. 11
    1. Statisticians are the most sought-after professionals these days.
    2. The Statistician's mission is handling, analysing, interpreting and facilitating decisions from data.
    3. The principal reason why Statistics is a key necessity to humankind today is the massive amounts of available information.

    Which of the above statements about statistics is correct?

  12. 12

    Which measure of central tendency is the best for nominal data sets?

  13. 13

    Which of the following is more useful to discover the overall shape of the data?

  14. 14

    Which of the following is not data?

  15. 15

    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?

  16. 16

    What is the level of measurement of times of day as "Dawn, Morning, Noon, Afternoon, Evening, Night"

  17. 17

    What is the mode of following data set: 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 6, 6, 7, 9?

  18. 18

    What is 'the most frequent value in the entire data set' called?

  19. 19

    Which of the following is not variable?

  20. 20

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

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