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Replies to This Discussion

STA301 - May – June 2013 - MidTerm

Aaj ka paper STA301

OBJECTIVE

1: Which of the following can never be taken as the probability of an event?

  • 1
  • 0
  • 0.5
  • -0.5

 

2: A die is rolled. What is the probability of getting a number that is an even number and greater than 2.

  • 1/2
  • 1/3
  • 2/3
  • 5/6

3: A set is any well-defined collection of

  • Positive Objects
  • Negative Objects
  • Same Objects
  • Distinct Objects

 

4: Men tend to marry women who are slightly younger than themselves. Suppose that every man married a women who is exactly 5 years younger than themselves. Which of the following is correct?

  • The correlation coefficient is -5
  • The correlation coefficient is 5
  • The correlation coefficient is 1
  • The correlation coefficient is 0

 

5: Which of the following value could not represent a coefficient of correlation?

  • r = 0.99
  • r = 1.09
  • r = -0.73
  • r = -1

 

6: What is the result of the following factorial expression?

1! + 2! + 3!

  • 5
  • 6
  • 9
  • 10

 

7: If P(A∩B)=P(A|B)xP(B) then A and B will be:

  • Independent
  • Mutually Exclusive
  • Dependent
  • Equally Likely

 

8: Data obtained from the ministry of food is an example of:

  • Primary data
  • Secondary data
  • Qualitative data
  • None of these

 

9: Which of the following comes first to make frequency distribution?

  • Number of groups
  • Class interval
  • Range
  • Tally marks

 

10: All possible trials by throwing a dice, is an example of:

  • Finite population
  • Infinite population
  • Hypothetical population
  • Limited population

 

11: In a simple bar chart:

  • Width of bar is meaningful
  • Height of bar is meaningful
  • Height of bar is not meaningful
  • Height and width both are meaningful

 

12: What shape would you expect for the distribution of scores for a very easy exam for a large class of students?

  • Positively skewed
  • Symmetrical
  • Negatively skewed
  • Normal

 

13: Data arranged in ascending or descending order is called:

  • Ungrouped data
  • Raw data
  • Grouped data
  • Arrayed data

 

14: What is the stem part of 243:

  • 3
  • 43
  • 23
  • 24

 

15: Stem and leaf was introduced by:

  • Francis Galton
  • Friedman
  • John Turkey
  • Pearson

 

16: If ‘2’ is the leading digit in 24335, then what are the trailing digits in the observation to display a ‘Stem-and-Leaf display’

  • 4
  • 335
  • 4335
  • 43

 

17: How many modes are there in a binomial distribution?

  • 2
  • 3
  • 0
  • 1

 

18: Which of the following measurements does not divide a data set into equal parts?

  • Quartiles
  • Deciles
  • Percentiles
  • Standard deviations

 

19: What is the range of the following values?

-2, -3, -5, -10

  • -12
  • 8
  • -8
  • 2

 

20: Under which condition standard deviation could assume a negative value:

  • When more than half of the data values are negative
  • If all the data values are same
  • The standard deviation cannot be negative
  • When all the data values are negative
Attachments:

Anyone is welcome to post solution :)

Mcqs mostly from past paper
Subjective
Q1;The regression line is fitted and data from which it is computed is given below
Y=-0.5+0.5x,∑y2=26,∑y=10,∑xy=37,n=5
Find standard error of estimated Sx;y?(5 mark)
Q2;A man toss two die and get sample space is given then
What is condition probility the sum of two die will be 7,given sum of two die is odd?(5 mark)
Q3;What is equally likely event?(3 mark)
Q4:What are three steps of Basic axioms probility theory?(3mark)
Q5;What type of data set Empirical rule is applied?(2)
Q6:Write two normal equation of regression line x on Y?(2 mark)
........best of luck........

1 to 20 lec hi hy na sta301 k ?

yes

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