Statıstıcs I (ENG)
Deneme Sınavı Soruları
- 20 soru
- Cevap anahtarı açık: çöz, sonucunu gör
- 1
In binomial distribution, "The probability of success, denoted by and the probability of failure, denoted by remains _____________ for all trials"?
- 2
What is the mean of f(x) = x for 0 ≤ x ≤ 4 equal to?
- 3
What is the mean of f(x) = x for 0 ≤ x ≤ 4 equal to?
- 4
In how many different ways can the letters in P R O B A B I L I T Y be arranged?
- 5
What is a central tendency measure of the probability distribution?
- 6
Events A, B, and C are all independent and that B and C are mutually exclusive events. P(A)=0.04, P(B)=0.03, and P(C)=0.02. What is the probability that events A and B will occur or A will not occur and C will occur?
- 7
In Binomial distribtuion, Each trial has only_________ possible outcomes?
- 8
Which statements below are correct?
I Exponential distribution is a type of a discrete random variable.
II Discrete random variables have only a countable number of distinct values.
III A discrete random variable typically comprises of a counting concept.
IV Continuous random variables represent entire infinite values in an interval.
V Continuous random variables are commonly measured instead of counted.
- 9
A bakery employs 10 people. The number of years’ experience that the employees of the company have is the following: 0, 0, 2, 4, 5, 8, 15, 17, 20, 24. What is the 80th percentile of the data?
- 10
Pdf for continuous random variable X is defined as follows;
f (x) = 0.02, for 0 ≤ x ≤ 50. What is he variance of the continuous random variable X? - 11
Which of the following is not true about percentiles?
- 12
- f (x) ≥ 0 for all x values
- The normal distribution function curve is symmetric around the mean, μ
- The probability density function f (x) does not the touch and intersect x axis
Which of the above is/are the properties that probability density function f (x) of normal distribution has?
- 13
Which of the following is the most important and widely used measure of variability in statistics ?
- 14
Which of the following do not constitute “big data”?
- 15
Which of the following matches is wrong?
- 16
Which of the following is true about cumulative frequency distribution table?
- 17
- It is the best measure of central tendency for nominal data.
- It is the middle value of an ordered dataset.
- It can be preferred when the distribution is skewed.
Which of the given above about median is true?
- 18
What is the geometric mean of the following data set?
64, 125, 216
- 19
Mode is the.......value in a data set.
Which of the following correctly fills in the blank in the sentence above?
- 20

What type of measurement level is the reason for the people to travel shown in the figure above?