Skip to main content

BBA – 1ST Sem.

Times-2hours MM-50

BBA – 1ST Sem.

Attempt all

Part – A (2 Marks)

  1. In a BBA class of 128 students, 48 have failed, securing 25 marks on an average. If the total marks of all the students the 5120 find the average marks second by the students passing the test.
  2. From the following locate the medium

    11 71 35 55 62 13 15 75

  1. Mean of 50 items was 80. It was discovered later that two items were wrongly taken as 23 and 24 place of 32 and 42 respectively. Find correct mean.
  2. From the following find the co-efficient of variation. X = 40, v = 25
  3. If the co-efficient of two series are 75% and 90% and their S.D.S. are 15 and 18 respectively, find their mean
  4. Determine person’s coefficient of correlation when x y = 150, x = 60, y = 50, x2 = 200 and N = 100
  5. Determine the number of pairs of observation when d2 = 231 and r (s) = - 0.4
  6. Find regression equation of x y = 20, x = 1.5, y = 2 and xy = 0.60
  7. If x y = - 26, x2 = 40, y2 = 20, x = 0 find b x y.
  8. Determine the value of range and its coefficient

    Marks 30 20 40 50 10 60 75 25
    No. of stds. 5 6 7 9 3 4 8 7

Part – B (Attempt any 6)

    1. From the following series, determine inter duartile range, Duartile deviation and their coefficient

    Roll no:

    Marks:

    		 1001

    94

    		 1002

    95

    		 1003

    96

    		 1004

    93

    		 1005

    87

    		 1006

    79

    		 1007

    73

    		 1008

    69


    1. Find the coefficient of correlation between two x and y wrong short cut

    X:

    Y:

    		 5

    1

    		 10

    6

    		 5

    2

    		 11

    8

    		 12

    5

    		 4

    1

    		 3

    4

    		 2

    6

    		 7

    5

    		 6

    2

    1. two regression equations:

    Sales:

    Purchase:

    		 91

    71

    		 97

    75

    		 108

    69

    		 121

    97

    		 67

    70

    		 124

    91

    		 51

    39

    		 73

    61

    		 111

    80

    		 57

    47


    1. Find the complained and coefficient of variation from the following data.

    Factors X Y
    N

    X

    		 100

    40

    10

    		 200

    50

    12

    1. Find standard deviation and coefficient of variation from the following data.

    Expenditure Below (Rs.)

    No. of students

    		 5

    6

    		 10

    16

    		 15

    28

    		 20

    38

    		 25

    42


    1. In a series these are 5 items out of which the values of the 3 items are 3, 5 and 7 respectively. If the mean and standard deviation of the series the 5 and 3 respectively find the values of other two items.
    2. Find medium

    Marks: bellow 10

    No. of students: 4

    		 10 – 30

    6

    		 30 – 60

    10

    		 60 – 100

    7

    		 100 and above

    3



    1. From the following data find the two entreme quartile

    Size of shoes:

    Frequency sales:

    		 8’

    7

    		 6.5”

    8

    		 7.5”

    10

    		 7”

    15

    		 5.5”

    40

    		 6”

    25

    		 4.5”

    28

    		 4”

    18

    		 5”

    10


    1. Following are the ranks given by 3 judges in a contest. Find the degree of correlation between 1st and 2nd, 2nd and 3rd, 3rd and 1st. And also mention which pair of judges agree or disagree the most:

      Judge 1: 1 3 7 9 2 4 10 8 6 5

      Judge 2: 7 5 4 6 1 2 3 8 10 9

      Judge 3: 4 10 3 9 2 8 1 5 7 6

Comments

Post a Comment

Also read

Cutting people off isn’t strength—It is a trauma response

Your ability to cut people off and self-isolate is not a skill you should be proud of—It is a trauma response Cutting people off and self-isolating may feel like a protective shield, but it is often rooted in unresolved or unhealed trauma and an inability to depend on others. While these behaviors seem like self-preservation, they end up reinforcing isolation and blocking meaningful connections. Confronting these patterns, seeking therapy, and nurturing supportive relationships can help break this unhealthy cycle. Plus, a simple act like planting a jasmine plant can symbolise the start of your journey towards emotional healing. Why do we cut people off and isolate? If you’re someone who prides themselves on “cutting people off” or keeping a tight circle, you might believe it’s a skill—a way to protect yourself from betrayal, hurt, or unnecessary drama. I get it. I’ve been there, too. But here’s the thing: this ability to isolate yourself is not as empowering as it may seem. In fact, i...
1 comment
Read more

Trail of Mohammad Ajmal Amir Kasab – A joke!

Who do you trial? Who does this? What is this all about? Is this playing with justice or is it just a mockery of the whole thing? Well, there are lots of questions and I find very less of answers to all these. Mohammad Ajmal Amir Kasab is the only survivor from the pack of Pakistani terrorists who attacked Mumbai on November 26, 2008 (better known as 26/11). He was captured while he was on a rampage killing scores of people and injuring hundreds, on that dreadful night in Mumbai. There was a lot of fuss in the last few months about him being a Pakistani or his age to be prosecuted in an adult court or with his captivity. Recently, the long awaited trial started and everyone is waiting to see what the court will decide on his fate. Ridiculous! What is there to decide? Hang him!! Simple… Well, I do not want to hang him without getting all the information from him and only after proving that the attackers were all from Pakistan and the whole incident was built up by the Pakistani Army, Go...
12 comments
Read more

Dumb Indians?

Some more thought on EDUCATION. This was originally written by me on my personal blog... but i think this will go very well in this arena too. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- "The fundamental issue that India has and not easily solvable is average IQ being low. India's average IQ is 81, while that of most progressed countries is above 97. China surprisingly has an average IQ of 100. India being a truely democratic country, the government is represented by majority, and majority has an IQ below 70 (IQ distribution is vast in India). Hence you get a government elected by morons, representing morons, and full of morons. And since these morons govern justice system, education system, healthcare, you name it, a person with an engineering degree, or a doctor, or a lawyer from India on average has an IQ of 81 as well. While the requirements of bec...
4 comments
Read more