Deneme Sınavı Soruları

Which of the following is not true for normal distribution?

2 models will be randomly selected to walk in a fashion show in France. There are 2 models from an Italian agency and 3 of them work for a Turkish agency.  If the event “one Turkish model Y and one Italian model X is chosen” is denoted by E, which one below is the listing the elements of E?

I. For any event A⊆S, P(A)≥0. 

II. For any event A, P(Ā) = 1 – P (A)

III. For any two events A and B, P(A,B) = P(A) + P(B)

Which of the probability axioms can be said to be true?

Pdf for continuous random variable X is defined as follows;
f (x) = 0.02, for 0 ≤ x ≤ 50. What is the standard deviation of the continuous random variable X?

Which of the followings is not true about "range"?

What must be the value of k if the table above is a probability distribution table of variable X?

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.

According to empirical probability, which of the following statements is not true?

Consider the probability density function f(x)=0.04, for 15 ≤ x ≤ 40 and determine the probability of P (25 <= X <= 35) ?

I. The central tendency measure of the distribution 

II. A measure of the variability of the observations

III. The information of the distribution shape

Which pieces of information given above can be obtained from a box-plot?

Which of the following is a discrete random variable?

Choose the appropriate bar chart for the given frequency table?

Which of the following are not data?

Which of the following is not correct about bar charts?

“It gives the researcher a chance to create a grouped frequency distribution of the data without using any formula”

Which of the data presentation visual is mentioned in this sentence?

Which type of response does the question above require?

1. A study which aims to find some evidence of a result
2. A study which aims to find causes of a result
3. A study in which the groups are “balanced” in terms of known factors
4. A study conducted where conditions are controlled

Which of the above can be given as an example/examples of observational studies?

There is a data set of clinic’s patients above. Which of the following statements about this table is false?