Statıstıcs I (ENG)
Deneme Sınavı Soruları
- 20 soru
- Cevap anahtarı açık: çöz, sonucunu gör
- 1
"__________is a widely employed discrete probability distribution in statistics where a set of independent observations constitutes exactly two disjoint outcomes of a trial."
Which option completes the definition given above?
- 2
We have a box containing only red and blue balls. If we randomly pick up a ball from this box, it could only be either a red ball or a blue ball, the selected ball cannot be a ball of red and blue at the same time. The occurrence of one event dictates that none of the other events can occur at the same time.
How is this event called?
- 3
2 models will be selected to walk in a fashion show in France. There are 2 models from an Italian agency and 3 of them work for a Turkish agency. how many different possible outcomes are there?
- 4
Which is NOT TRUE about a random experiment?
- 5
If there were two dices thrown at the same time what would their total number of possible outcomes be?
- 6
Which of the following is not a continuous random variable?
- 7
Which of the following is the differences between the third and the first quartiles?
- 8
Which one below is an example of exponential distribution?
- 9
Data : 100, 120, 120, 180, 200. What is the sample standard deviation of this data ?
- 10
Data : 12, 16, 10, 20, 12 ; what is the mean deviation of these data ?
- 11
I. The mean is pulled in the direction of the tail.
II. The median falls between the mode and the mean.
III. The mean, median, and mode are all the same.
If the distribution is left skewed, having a long tail in negative direction and a single peak, which of the statements above are true?
- 12
What is the variance of the probability distribution given above?
- 13
What is the mean of variable X, given the probabilty distribution above?
- 14
What is the median of the following data set with frequency in paranthesis?
12 (2), 32 (4), 35 (3), 43 (3), 92 (2)
- 15
Which of the following is used to represent discrete values for each category for a given variable on horizontal axis while vertical axis show the actual numbers of each category?
- 16
Which one of the following stem-and-leaf plot represents the data displayed in the Table above?
- 17
An English teacher wants to look into the effect of a certain teaching strategy on learning. Which is NOT TRUE about her study?
- 18
What is the arithmetic mean of the following data set?
4, 4, 6, 7, 8, 10, 11, 12, 18, 32
- 19
Self-reported data for high school students is presented in the table above. How many interval scales are there in the data set above?
- 20
Which of the following is not an component of data sets?