Self Studies

Statistics Test - 1

Result Self Studies

Statistics Test - 1
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0

    The sum of the squares of deviations of a set of values is minimum when taken about:

  • Question 2
    1 / -0

    The mean of 5 observations is 4.4. If three observations are 1,2 and 6 and the difference of the other two is 5, then the other two observations are:

    Solution

    Let other two numbers be x and y 

    Mean (x) = 4.4 = (1+2+6+x+y)/5

    this gives (x+y)=13......(1) 

    Also,       (x−y)=5 ........(2) 

    Therefore from (1) and (2)

     x = 9 and  y = 4 

  • Question 3
    1 / -0

    If the angle between two lines of regression is 900 , then it represents

    Solution

    {(23.PNG)}

    hence r = 0, therefore there is no linear correlation.

  • Question 4
    1 / -0

    Which of the following statements is/are correct?
    (i) Mode can be computed from histogram
    (ii) Median is not independent of change of scale
    (iii) Variance is independent of change of scale

  • Question 5
    1 / -0

    A batsman scores runs in 10 innings as 38,70,48,34,42,55,63,46,54 and 44 , then the mean score is

    Solution

    Mean (x) = (38+70+48+34+42+55+63+46+54+44)/10

    = 494/10

    = 49.4

  • Question 6
    1 / -0

    The average marks of boys in a class are 52 and those of girls are 42. The average marks of boys and girls combined are 50. The percentage of boys in the class is

  • Question 7
    1 / -0

    For symmetric distribution, which of the following should be true?

Self Studies
User
Question Analysis
  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now