We have been working very hard since 2009 to facilitate in your learning Read More. We can't keep up without your support. Donate Now.
+ Link For Assignments, GDBs & Online Quizzes Solution |
+ Link For Past Papers, Solved MCQs, Short Notes & More |
STA 301 Quiz # 01 Opening date 20-11-2014 close date 21-11-2014 11.59pm Share your quizes and discuss
Tags:
+ http://bit.ly/vucodes (Link for Assignments, GDBs & Online Quizzes Solution)
+ http://bit.ly/papersvu (Link for Past Papers, Solved MCQs, Short Notes & More)
+ Click Here to Search (Looking For something at vustudents.ning.com?) + Click Here To Join (Our facebook study Group)Please all students related this subject Share your online Quizzes here to help each other.thanks
Please share the question and their answers of this quiz if anyone has done.
Thanks.
1. A quantity obtained by applying certain rule or formula is known as
Select correct option:
Estimate
Estimator
2. Criteria to check a point estimator to be good involves
Select correct option:
Consistency
Unbiasedness
Efficiency
Above all pg 258
3. The F-distribution always ranges from:
Select correct option:
0 to 1
0 to -8
-8 to +8
0 to +8
5. Parameter is a ………quantity.
Select correct option:
Constant
Variable
6. To find the estimate of a parameter…….methods are used.
Select correct option:
Two
Three
Four
Many
7. A failing student is passed by an examiner. It is an example of:
Select correct option:
Type I error
Type II error
Correct decision
No information regarding student exams
8. For two mutually exclusive events A and B, P (A) = 0.2 and P (B) = 0.4, then P(AUB) is:
Select correct option:
0.8
0.2
0.6
0.5
P(AUB)=P(A)+p(B)=0.2+0.4=0.6
9. An urn contains 4 red balls and 6 green balls. A sample of 4 balls is selected from the urn
without replacement. It is the example of:
Select correct option:
Binomial distribution
Hypergrometric distribution
Poisson distribution
Exponential distribution
10. A standard deck of 52 cards is shuffled. What is the probability of choosing the 5 of diamonds:
Select correct option:
1/5
1/13
1/52
11. If P(AnB) = 0.12 P (A) = 0.3, find P (B) where ‘A’ and ‘B’ are independent:
Select correct option:
0.1
0.2
0.3
0.4
0.3X0.4=0.12
12. The mean deviation of the normal distribution is approximately:
Select correct option:
7/8 of the S.D
4/5 of the S.D
3/4 of the S.D
1/2 of the S.D
13. We use the Poisson approximation to the binomial when:
Select correct option:
p is 0.01 or less & n is 10 or more
p is 0.05 or less & n is 20 or more pg221
p is 0.04 or less & n is 15 or more
p is 0.02 or less & n is 10 or more
14. The conditional probability P (A\B) is:
Select correct option:
P(A n B)/P(B) pg157
P(A n B)/P(A)
P(A U B)/P(B)
P(A U B)/P(A)
15. We use the General Rule of Multiplication to combine:
Select correct option:
Events those are not independent
Mutually exclusive events
Events that total more than 1.00
Events based on subjective probabilities
in me say koi b q nhe aya .. mean and medain pahar loo .. quiz complete ho jai ga bas thora sa ...
D_Asif please dnt confuse the students jo question ap nay share keye hain ya last k chapters k hain and quiz number 1 is from lesson 1 to 9.. andha dhund copy paste mat mar dia karo..
16. Which statement is NOT CORRECT?
Select correct option:
The sample standard deviation measures variability of our sample values
A larger sample will give answers that vary less from the true value than smaller samples
The sampling distribution describes how our estimate (answer) will vary if a new sample is taken
A large sample size always gives unbiased estimators regardless of how the sample is chosen
17. Probability of an impossible event is always:
Select correct option:
Less than one
Greater than one
Between one and zero
Zero
18. The number of parameters in uniform distribution is (are):
Select correct option:
12
pg 224
34
19. The probability can never be:
Select correct option:
1 1/2
1 -
1/2
20. The conditional probability P (A\B) is:
Select correct option:
P(A n B)/P(B)
P(A n B)/P(A)
P(A U B)/P(B)
P(A U B)/P(A)
21. A random sample of n=25 values gives sample mean 83. Can this sample be regarded as drawn
from a normal population with μ= 80 and s= 7? In this question the alternative hypothesis will
be:
Select correct option:
H1: μ = 80
H1: μ ? 80
H1: μ > 80
H1: μ <80 pg 278
22. If f(x) is a continuous probability function, then P(X = 2) is:
Select correct option:
10 1/2
2
23. The binomial distribution is negatively skewed when:
Select correct option:
p>q pg 214
p<q
p=q
p=q=1/2
24. If we roll three fair dices then the total number of outcomes is:
Select correct option:
6 36
216
1296
6^3=216
25. When we draw the sample with replacement, the probability distribution to be used is:
Select correct option:
Binomial
Hypergeometric
Binomial & hypergeometric pg 219
Poisson
26. The moment ratios of normal distribution come out to be:
Select correct option:
0 and 1
0 and 2
0 and 3 pg 226
0 and 4
27. The probability of an event is always:
Select correct option:
less than 1
between o and 1
greater than 1
28. Symbolically, a conditional probability is:
Select correct option:
P(AB)
P(A/B)
P(A)
P(AUB)
29. Suppose the test scores of 600 students are normally distributed with a mean of 76 and
standard deviation of 8. The number of students scoring between 70 and 82 is:
Select correct option:
272
164
260
328
30. If P (A) = 0.3 and P (B) = 0.5, find P (A/B) where ‘A’ and ‘B’ are independent:
Select correct option:
0.3
0.5
0.8
0.15
31. An urn contains 4 red balls and 6 green balls. A sample of 4 balls is selected from the urn
without replacement. It is the example of:
Select correct option:
Binomial distribution
Hypergrometric distribution
Poisson distribution
Exponential distribution
32. If the second moment ratio is less than 3 the distribution will be:
Select correct option:
Mesokurtic
Leptokurtic
Platykurtic pg 226
None of these
33. For the independent events A and B if P (A) = 0.25, P (B) =0.40 then P (A and B) =……
Select correct option:
0.65
0.1
0.50
0.15
P(A)*P(B)0.25*0.40=0.1
34. A set of possible values that a random variable can assume and their associated probabilities of
occurrence are referred to as __________.
Select correct option:
Probability distribution
The expected return
The standard deviation
Coefficient of variation
35. A random variable X has a probability distribution as follows: X | 0 1 2 3 P(X) | 2k 3k 13k 2k
What is the possible value of k:
Select correct option:
0.01
0.03
0.05
0.07
36. The probability of drawing any one spade card is:
Select correct option:
1/52
4/52
13/52
52/52
37. The function abbreviated to d.f. is also called the......
Select correct option:
Probability density function
Probability distribution function pg 172
Commutative distribution function
Discrete function
38. Binomial distribution is skewed to the right if:
Select correct option:
p=q
P<q
p>q
p=n
39. A discrete probability function f(x) is always:
Select correct option:
Zero
One pg 172
Negative
Non-negative
40. For a binomial distribution, n= 10 & q= 0.6, the mean of the distribution is:
Select correct option:
0.6
6.0
10
4
P=1-q
1-0.6=0.4,
mean =np10*0.4=4
41. In the FA examination, 24candidates offered Statistics. If the probability of passing the subject
be 1/3, what will be the mean of the distribution?
Select correct option:
7865
42. The probability that a certain machine will produce a defective item is 1/4. If a random sample
of 6 items is taken from the output of this machine, what is the probability that there will be 5
or more defectives in the sample?
Select correct option:
3/4096
18/4096
19/4096
4/4096
43. Probability of type II error is
Select correct option:
a
B pg 276
1-a
1-B
44. If the values of variables are increasing or decreasing in the same direction then such kind of
correlation is referred as
Select correct option:
Zero Correlation
Perfect Correlation
Positive Correlation
Negative Correlation
45. The moving averages of the Prices 55,60,65,70 are
Select correct option:
70, 75
60, 65
65,65
70,60
46. The best measure of variation is
Select correct option:
Range
Quartile deviation
Variance
Coefficient of variance
47. Ms. Christian calculated a correlation coefficient of .75. Which of the following reflects the
best interpretation of this?
Select correct option:
Weak negative.
Strong negative.
Weak positive.
Strong positive.
48. ………use the division of a circle into different sectors. Select correct option:
Line graph
Sector graphs
Frequency Polygon
Conversion Graphs
49. The measurement of measure of degree of to which any two variables vary together is called
Select correct option:
Regression Coefficient
Correlation
Both (a) and (b)
None of these
50. Analysis of Variance (ANOVA) is a test for equality of:
Select correct option:
variances
means
proportions
only two parameters
quiz file in one file
© 2020 Created by +M.Tariq Malik. Powered by
Promote Us | Report an Issue | Privacy Policy | Terms of Service
We are user-generated contents site. All product, videos, pictures & others contents on vustudents.ning.com don't seem to be beneath our Copyrights & belong to their respected owners & freely available on public domains. We believe in Our Policy & do according to them. If Any content is offensive in your Copyrights then please email at m.tariqmalik@gmail.com or Contact us at contact Page with copyright detail & We will happy to remove it immediately.
Management: Admins ::: Moderators
Awards Badges List | Moderators Group
All Members | Featured Members | Top Reputation Members | Angels Members | Intellectual Members | Criteria for Selection
Become a Team Member | Safety Guidelines for New | Site FAQ & Rules | Safety Matters | Online Safety | Rules For Blog Post