Deneme Sınavı Soruları

What is the arithmetic mean of the following data set with frequency in paranthesis?

20 (3), 32 (4), 47 (2), 10 (3)

Which of the following is not correct about bar charts?

1. Include the relative frequency of each bin (class) to your grouped frequency distribution
2. Determine the sample size
3. Draw a rectangular for each bin
4. Create the grouped frequency distribution of the data 

To create a histogram for continuous data, sort the steps written above? 

1. Element
2. Variable
3. Concept
4. Case

Which of the above are the key components of a data set?

What is the midrange of the following data set with frequency in paranthesis?

14 (2), 34 (4), 38 (3), 44 (3), 96 (2)

Consider the pie chart constructed based on the data presented above. What is the angle of the studying?

The main criteria for selecting a sample will be that the sample is _____I_____ of the population and that there’s no or very little ____II_____ in the choice of the sampling units.

Which of the following options fills the blank in the above sentence in the most correct way?

What is the geometric mean of the following data set?

8, 27, 64

Which of the following is not an ordinal variable?

The graph shows the electricity, water and ADSL bills of a family. Which one of the following can be deduced, based on the data?

An investor needs to decide on that the power of Turkish Lira to make an investment in Turkey and wants to analyze the tendency of Turkish Lira versus a foreign currency. Which type of display is best for the investor?

There are 85 people interviewed on their weekly salary. If the frequency for Class 2 is 21 what is the percentage of relative frequency?

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?

The figure above is a dot plot showing Mathematics grades in class A by gender. Which of the statements is not correct depending on the information above?

We ask the students to number the most important language skill for them in their academic classes as 1 and the least important one as 2. Which option below best describes this measurement?

A researcher collects data about the weight of pupils in a school. There are 500 students in that school whose weight differs from 20kgs to 40kgs.

If this researcher wants to constitute a grouped frequency distribution table, what is the class width for this case?

Which one below is a type of bar chart where each bar is divided into subgroups proportional to the contribution a subgroup makes to associated bar?

Which of the following can be estimated by using ogive curve?

In which of the following components and outcomes of a total frequency is shown as sectors of a circle?

In order to investigate the impact of playing online games on developing English speaking skills, we make a group of students play online games for four hours a day and prevent another group of students playing any English online games. What type of research we are conducting?