Deneme Sınavı Soruları

Which of the following is TRUE about symmetric bell-shape distributions?

Which of the following is preferably used to visualize a trend of continuous data over time?

1. The first role of Statistics is to reduce this mass of complex data to a simpler form in order to facilitate understanding and learning from the data.
2. Words, SMSs, tweets, social media posts, verbal responses i­n questionnaires, these can all be treated as data.
3. Climate data, measurements from tens of thousands of weather stations across the world, is an example of big data.

Which of the above statements related to the data is correct?

150 college students were randomly assigned to played either a violent or nonviolent video game. A short time later, the students who played the violent video game punished an opponent (received a noise blast with varying intensity) for a longer period of time than did students who had played the nonviolent video game.

What type of study is described above?

 Suppose that 100 students were asked what type of transportation they use to travel home. Using the student responses given in the table below, construct the pie chart of this data. Which of the response do you think take the smallest portion?

I- Students' GPAs
II-Political parties
III- Educational level

What type of variable are the ones described above?

1. Commerce
2. Insurance
3. Transport

In which areas above do big data set could be found?

What type of variable is your heart beat?

Widespread social media platforms you visit everyday are gathering information about your profile, friends, tendencies, behaviors and so. What are they working on?

The number of workers in a certain factory is given below. What is the cumulative frequency of of workers whose age is less than 50?

1. It is the best measure of central tendency for nominal data.
2. It is the middle value of an ordered dataset.
3. It can be preferred when the distribution is skewed.

Which of the given above about median is true?

Which of the following do not constitute big data?

The chart below shows the relationship between humidity and temperature for 25 days. Which option is correct depending on the information on the chart?

For an observation that results in values 6,7,2,4,3,5,6 what is the %30 trimmed (truncated) mean of the group?

For an observation that results in values 6,7,3,4,3,5,6,6 what is the mode of this group?

1. Usually used to represent categorical data
2. Divides categories as sectors
3. Each sector's size shows the proportion of each category to the total

Which of the following do these features belong to?

"The number of applications downloaded to a phone".

 What is the level of measurement in this problem?

For an observation that results in values 6,7,3,4,3,5,6,6 what is the median of this group?

The graph represents the data of the number of vehicles registered in traffic by year. Purple line represents the 2017 data and maroon line represents the 2018 data. According to this graph, which of the following is the month when most vehicles are registered to traffic in 2018?