Statıstıcs I (ENG)
Ünite Sınavı Soruları
- 19 soru
- Soru metinleri açık; şıklar ve cevap anahtarı uygulamada
- 1
The exam scores of 5 students taking the statistics course are given above. The weight of midterm exam is 40% and the weight of final is 60%. What will be the weighted average score of this group?
- 228, 16, 14, 22, 12, 48, 10 What is the median of the given data set?
- 3
What is the mode of the following frequency distribution created for Age variable?
- 4
The ages of children in a park are given as 10, 4, 8,10, 5, 6, 4, 5, 8,9. What is the median age of this group of children?
- 5
What is the midrange of the following data set?
10, 19, 11, 26, 26, 26, 18, 20, 35, 98, 11, 14, 18, 18, 26, 20, 48
- 6
Which measure of central tendency is the best for nominal data sets?
- 7
For an observation that results in values 6,7,3,4,3,5,6 what is the 30% Winsorized mean of the group?
- 8
How do we define a data set which has two modes?
- 9
What is the geometric mean of the following data set?
64, 125, 216
- 10
What is the mode of the following data set?
14, 17, 22, 2, 25, 4, 14, 6, 35, 93, 11, 14, 25, 18, 18, 25, 20, 14, 14, 48, 18, 25, 48
- 11
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?
- 12
Bicycle types and their prices in a certain shop are given above. What is the midrange of the bicycle prices?
- 14
- It is the best measure of central tendency for nominal data.
- It is the middle value of an ordered dataset.
- It can be preferred when the distribution is skewed.
Which of the given above about median is true?
- 15
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?
- 16
The data on weight distribution of a certain group of men is given on the table above. What is the mean weight for this group?
- 17
What is the geometric mean of the following data set?
8, 27, 64
- 18
What is the midrange of the following data set?
11, 18, 10, 25, 25, 81, 26, 18, 20, 35, 14, 11, 18, 18, 25, 20, 48
- 19
What is the mode of the following data set with frequency in paranthesis?
11 (3), 24 (2), 27 (3), 33 (2), 39 (4), 42 (3), 97 (2)
- 20
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 ........
Which of the following correctly fills in the blank in the sentence above?