Deneme Sınavı Soruları

In how many d­ifferent ways can the letters i­n T H A N K S be arranged?

Which one below is an example of exponential distribution?

I.     The number of students in a class.

II.    The time spent on doing an assignment.

III.   The height of the students.

IV.    The number of laptops in a school.

Which of the variables above is an example of a discrete random variable?

Which information below is correct?

I The mean of a continuous random variable X is a weighted
average through the possible values of the random variable and associated probabilities.

II The mean of the continuous random variable is denoted by E (x).

III The mean is also called as expected value and denoted by μ. 

IV The variance is denoted by V(x) or σ2.

Let's assume that three perfect coins are flipped three times, what is the probability that all the results are head?

What must be the value of "a" if the table above is the probability distribution of variable X whose mean is 2.8?

Which of the following is a measure of the midpoint or center of the probability distribution?

"For binomial distribution, its principal assumptions are n independent trials with two possible outcomes (success or failure) for each trial, and the success probability remains constant for each trial. On the other hand __________ distribution doesn’t involve with independence assumption for each trial and accordingly the sampling process is established on without replacement. Because of these features, it is broadly used in various real life applications especially for acceptance sampling in quality control."

Choose the correct option to complete blank in the paragraph given above. 

According to the following cumulative distribytion function graph, what is the probability of x < -1?

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

When is A and B, which are any two events in a random experiment with sample space S, can be said to be mutually exclusive?

1. Statisticians are the most sought-after professionals these days.
2. The Statistician's mission is handling, analysing, interpreting and facilitating decisions from data.
3. The principal reason why Statistics is a key necessity to humankind today is the massive amounts of available information.

Which of the above statements about statistics is correct?

Which of the following is not data?

(I) The voting age is 18 in Turkey. There are 56 million people who are able to vote in Turkey.

(II) Before election, a public opinion poll was conducted with 2000 people.

(III) In this poll, 2000 people stated the party of their choice.

Which terms in the statements I, II and III above correspond to the following concepts in the statistics?

A national sport committee decides to impose stricter conditions for athletes to enter the tournament. One year later, athletes obtain scores that are in general better than those the year before.

Which of the following can be considered as valid conclusions?

What is the median of the following data set?

4, 4, 4, 5, 7, 8, 10, 14, 18, 20, 26, 30

Which of the following is the measurement of a magnitude without equal intervals?

Choose the appropriate pie chart for the bar graph above?