STA301 Quiz No.2 Shared by Omair

Question # 1 of 10 ( Start time: 07:27:06 PM ) Total Marks: 1
Dividing mean deviation by mean we get a pure number known as
Select correct option:
Co-efficient of mean deviation*Co-efficient
Co-efficient of quartile deviation
None of the above

Question # 2 of 10 ( Start time: 07:28:06 PM ) Total Marks: 1
Formula for Semi Interquartile Range is:
Select correct option:
(Q3-Q1)/2*
(Q1+Q3)/2
(Q1-Q3)
(Q1+Q3)

Question # 3 of 10 ( Start time: 07:29:25 PM ) Total Marks: 1
Which scale will you use to measure the temperature?
Select correct option:
Nominal scale
Interval scale*Ratio scale
Ordinal scale

Question # 4 of 10 ( Start time: 07:30:57 PM ) Total Marks: 1
If Xo is the smallest value and Xm is the largest value in a data set then, range is defined by the relation:
Select correct option:
Xo
Xm
Xm-Xo*Xo-Xm

Question # 5 of 10 ( Start time: 07:32:14 PM ) Total Marks: 1
Half of the observations are always larger than:
Select correct option:
Mean*
Median
Mode
Total

Question # 6 of 10 ( Start time: 07:32:55 PM ) Total Marks: 1
The difference between estimated value and the population value is called
Select correct option:
Sampling Error
Non Random Error
Non Sampling Error
Random Error*

Question # 7 of 10 ( Start time: 07:34:23 PM ) Total Marks: 1
The sum of squared deviations from mean is:
Select correct option:
Maximum
Minimum
Zero*
Undefined

Question # 8 of 10 ( Start time: 07:35:01 PM ) Total Marks: 1
For the given data 20, 13, 27, 0, -8 G. M will be:
Select correct option:
Negative*
Positive
Zero
Undefined

Question # 9 of 10 ( Start time: 07:36:02 PM ) Total Marks: 1
What is the median for the following data: 1,1,2,2,5,5,7,7,7
Select correct option:
1
2
5*
7

When the deviations (excesses and defects) from the true value tend to occur equally, it is called:
Select correct option:
Unbiased error*
Biased error
Systematic error
Mistake