Deneme Sınavı Soruları

A company works with two supplier firms for the same raw material. The first firm's late delivery probability on a given day is 0.05, whereas for the second firm this probability is 0.07. In addition, both firms' late delivery probability on given day is 0.04. What is the late delivery probability of at least one of the firms to company on given day?

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

Which of the following is a measure of the dispersion or variability for data set for continuous random variables?

Assume that waiting time to connect to internet at your home is normally distributed with a mean of 270 seconds and a standard deviation of 90 seconds. Find the probability that you can connect to internet in less than 210 seconds in terms of standard normal distribution?

Consider an ultrasound software for brain tumor diagnosis : a) the overall rate of the disease in the population being screened is 1 % ; b) the probability that a healthy person wrongly gets a positive result (false positive) is 0.05 ; c) the probability that an ill wrongly gets a negative result (false negative) is 0.002 ; d) other 2 situations are correctly diagnosing healthy persons (true negative) and correctly diagnosing ills (true positive). If test of a person A gives a positive result, what is the probability that person A actually have the disease?

For two sets A and B the probability of B is 0.45 and P(A|B) is equal to 0.20 what is the value of P(A∩B)?

When the occurrence or non-occurrence of an event A does not affect the occurrence of another event B, then we say that A and B are statistically ........ events?

What is the area below the probability density function  f (x) = 0.1, for 0 ≤ x ≤ 20 ?

I. The complement of an event A is the set of all basic outcomes in S that do not belong to A.

II. The union of events A and B is the set of all elementary outcomes that belong to both sets. 

III. The intersection of events A and B is the set of all elementary outcomes that belong to at least one of the sets A and B.

For A and B, which are any two events in a random experiment with sample space S, which of the statements are true?

Which of the following is a discrete random variable?

Your professor is surveying you and asking your gender, hometown and branch. What form of data is s/he dealing with?

Which of the following is not variable?

What is the middle value of an ordered dataset called?

What are dependent (DV) and independent (IV) variables in a study to determine whether how long a student sleeps, studies, and solves the number of questions affects exam scores?

What are the gray, orange and green highlighted places in the dataset table above, called respectively?

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

Which statements below are correct about the table above?

I Mark's weekly wage being 320 is a data set.

II Being 56 years old male, Mark's  earning 320 dollars per week is a case. 

III Mark's being male is a qualitative data.

IV Mark's being 56 years old is a qualitative data.