Deneme Sınavı Soruları

A s­ix-si­ded fai­r dic­e has been thrown 3000 times and the occurrence of number 4 ­is 450. What i­s the empirical probability of obtaining a number 4 when you throw a s­ix-si­ded fai­r dic­e?

The normal distribution is one of the most significant and extensively used continuous probability distribution because ...

Which of the following correctly concludes the sentence above?

A s­ix-si­ded fai­r dic­e has been thrown 1000 times and the occurrence of number 2 ­is 156. What i­s the empirical probability of obtaining a number 2 when you throw a s­ix-si­ded fai­r dic­e?

Find out the mean score of the following data set: 10,20,40,60,100?

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

A farming company collected data about the amount of wheat (tons) sold in the last week to different companies. The data is as follows, 12, 35, 14, 25, 24, 40, 25. What is the mean of this data set?

What can be said true about the basic concepts of probability?

According to classical probability approach, what is the probability of obtaining a number 6 when you throw a six-sided fair die?

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?

For X which is a continuous random variable that is uniformly distributed and takes values between 3 and 9. What is the probability density function of the random variable X ?

Which one is a widely employed discrete probability distribution in statistics where a set of independent observations constitutes exactly two disjoint outcomes of a trial?

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

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

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

A researcher wants to know if field trips will improve science academic achievement. For this purpose, it forms two separate groups from 6th grade students. One of the groups regularly goes to field trips (museum visits, science centers, etc.) once a week for 1 year. Students in the other group only take science lessons in the classroom. Science academic achievements of children are measured and compared periodically throughout the year.

Which of the following statements about this research is correct?

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?

The ages of children in a park are given as 10, 4, 8,10, 5, 6, 4, 5, 8,9. What is the median age of this group of children?

Which of the following is not data?

Which of the following refers to 'the average of a set of numbers in the data'?

In the graphic above, the number of activities each student did is presented. What kind of a graphic is used to present this data? 

Students in a course get a grade, either "AA", "BA", "BB", or "BC", etc. What type of variable is the grade?