Aof Panel

Soru 1

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

Soru 2

Which of the followings is generally demonstrated as P(m), where m is the number taking values between 0 and 100?

Soru 3

Which of the following statements is not true regarding "percentiles"?

Soru 4

Which of the followings is the differences between the third and the first quartiles?

Soru 5

Which of the following information cannot be obtained from a box plot?

Soru 6

Which of the followings is a kind of descriptive statistics and give information about the shape of distribution of the observations?

Soru 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?

Soru 8

The sample standard deviation and the sample variance for a frequency distribution can be calculated as follows.

s= ∑k fi(xi−X)2 i=1 n−1

s=∑k fi(xi−X)2 2 i=1 n−1

Which of the followings is not true related to this formula?

Soru 9

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, 18

Which of the followings is the sample mean of the city A?

Soru 10

Data : 4, 4, 5, 5, 5, 15, 15, 18, 19, 15, 4, 5, 14, 14, 17, 17, 26, 26, 22, 22. What is the range of these data ?

Soru 11

Data : 0.2, 0.5, 0.17, 0.22, 0.26, 0.34, 0.39, 0.44, 0.55, 0.87, 1.1, 1.14, 2.5, 2.9, 4.4, 5.6. What is the 80th percentile of these data ?

Soru 12

Data format : (class, class interval, frequency, cumulative frequency) ; data : (1, 100 up to 200, 5, 5), (2, 200 up to 300, 10, 14), (3, 300 up to 400, 16, 30), (4, 400 up to 500, 20, 50), (5, 500 up to 600, 10, 60) ; what is the 40th percentile of these data ?

Soru 13

Data : 1.000, 1.000, 1.200, 1.200, 1.200, 1.400, 1.400, 1.500, 1.500, 1.500, 1.600, 1.600, 1.800, 1.800, 1.800, 2.000, 2.000, 2.500, 2.500, 2.500. What is the IQR of these data ?

Soru 14

Data : 100, 120, 120, 180, 200. What is the sample standard deviation of these data ?

Soru 15

Data format : (class interval, frequency) data : (100 up to 120, 1), (120 up to 180, 2), (180 up to 200, 1), (200 up to 250, 1). What is the sample standard deviation of these data ?

Soru 16

Data : 20, 12, 16, 12, 10 ; what is the Pearson’s coefficient of skewness of these data ?

Soru 17

Data : 20, 12, 16, 12, 10 ; what is the standard coefficient of skewness of these data ?

Soru 18

Which one of the following ones is included in a box plot ?

Soru 19

Data : 12, 16, 10, 20, 12 ; what is the mean deviation of these data ?

Soru 20

Which of the followings cannot be given as an example for random experiments?

İSTATİSTİK I - Deneme Sınavı - 9