Statıstıcs I (ENG)
Deneme Sınavı Soruları
- 20 soru
- Cevap anahtarı açık: çöz, sonucunu gör
- 1
Which one is broadly used in various real life applications especially for acceptance sampling in quality control?
- 2
For X which is a continuous random variable that is uniformly distributed and takes values between 3 and 9. What is the probability density function of the random variable X ?
- 3
Which of the following information cannot be obtained from a box plot?
- 4
Which of the statements below are correct?
I In classical probability, all the outcomes have the same chance of happening.
II In empirical probability, the experiments are repeated many times and the observed outcomes of the event we are interested in is counted.
III When it is not possible to observe the outcomes of events, the researcher applies the researcher assigns a suitable value as the probability of the event.
IV It is not appropriate to use personal judgement to assign the probability.
- 5
A mixed basketball team (5 players) will be chosen from 8 male and 7 female players. This team should consist of at least 2 female and at least 2 male players, how many different teams are possible?
- 6
A six-sided fair dice has been thrown 1000 times and the occurrence of number 2 is 156. What is the empirical probability of obtaining a number 2 when you throw a six-sided fair dice?
- 7
During a sales season, the fifteen salesmen in a computer company sold the following numbers of computers: 7, 11, 5, 12, 17, 6, 13, 9, 8, 4, 23, 12, 7, 6, 11.
Which of followings is the range of the number of sold computers?
- 8
During a festival, the five bar tenders in the festival area sold the following number of beers in three days : 9540, 3600, 5566, 12345 and 8745. What is the range of the beers sold during the festival?
- 9
What is mode?
- 10
Which class interval does contain the median?
- 11
A petrol company collected the data about the amount of fuel (tons) sold on two cities in a given Saturday. In each city the company has ten gas stations. The data is as follows.
City A: 3, 5, 6, 2, 7, 9, 8, 1, 4, 8
City B: 1, 4, 6, 2, 7, 19, 8, 1, 2, 18Which of the followings is the sample mean of the city A?
- 12
The measures of ________ are another kind of descriptive statistics and give information about the shape of distribution of the observations.
Which option completes the blank in the description above?
- 13
Data : 20, 12, 16, 12, 10 ; what is the standard coefficient of skewness of these data ?
- 14
In the graphic above, the number of activities that five students did during a semester is present in a grouped bar chart. According to this data, which student attended the most concerts? - 15
"The number of applications downloaded to a phone".
What is the level of measurement in this problem?
- 16
- Divides values as greatest digits and remaining digits
- Useful to visualize the range, outliers and most frequent values
- Useful to assess the spread of the distribution of the data
Which of the following display types does these features belong to?
- 17
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)
- 18
I. the shape of the distribution of the data
II.the relation between two sets of data
III.the most repeating observations
Which of the things above a properly created graph can report in a visual form?
- 19
What is the mode of the following data set with frequency in paranthesis?
15 (2), 30 (4), 35 (3), 40 (3), 95 (2)
- 20
For an observation that results in values 6,7,3,4,3,5,6,6 what is the arithmetic mean of this group?