Aof Panel

Soru 1

In a data set, what is the difference between the largest and smallest values called?

Soru 2

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. What is the range of the number of sold computers?

Soru 3

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?

Soru 4

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?

Soru 5

I. The central tendency measure of the distribution

II. A measure of the variability of the observations

III. The information of the distribution shape

Which pieces of information given above can be obtained from a box-plot?

Soru 6

Which of the following statements is true according to the box-plot given below?

Soru 7

Which option gives the correct terms to complete the blanks given in the graph in the correct order ( from 1 to 4)?

Soru 8

Which of the following is the most important and widely used measure of variability in statistics?

Soru 9

The number of houses sold by each of the 10 estate agents during a particular 6 months period are 1, 4, 7, 6, 2, 10, 10, 3, 8, 9. What is the range of the data?

Soru 10

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?

Soru 11

Which of the following is not true about range?

Soru 12

Which of the following is not true about percentiles?

Soru 13

Which of the following is not true about box plot?

Soru 14

The data set: [20,20,20,25,25,30,35,35,40,40,45,45] What is the interquartile range of the data set above?

Soru 15

Which of the following is not true about skewness?

Soru 16

The observations are as follows; [14,15,15,16,17,18,20,21,20]

Which of the following is the Pearson’s coefficient of skewness (PCS) value of the data set above?

Soru 17

The number of the book read by the students in a year as follows; 10,11,11,12,14,17,18,19,20.

What is the range of the given data above?

Soru 18

The exam points of the students in a math class as follows;

45,53,67,74,88,88,95,95,100.

Which of the following is the standard deviation of the data?

Soru 19

The height of the students in a class as follows;

155, 156, 157, 160, 162, 165, 170, 180.

Which of the following is the median of the given data?

Soru 20

The box plot is given above shows the data about the number of hours spent on watching tv a day by students in a school.

Which of the following is not correct about the box plot data?

İSTATİSTİK I