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STA 301 Quiz # 01 Opening date 20-11-2014 close date 21-11-2014 11.59pm Share your quizes and discuss
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How many questions are there in this quiz 1?
Intoxicated dz 4 guide ........quizz 10 hoty hain .............unhy solve karna ha bas
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sahrish aap ne quiz de dia haa??????????????
Here is my 1st Quizz verify all answers yourself.
Observed data organized into tabular form is called:
A bar chart
Calculate range for the following data: 22, 22, 30, 32, 37, 48, 60, 88, 90
68
Ranking scale also include the properties of which scale?
*Nominal scale
Interval scale
Ratio scale
All of these
The sum of squared deviations from mean is:
Zero
The difference between estimated value and the population value is called
Random Error
The value of the middle term in a ranked (ordered) data set is called the:
Median
Half of the observations are always larger than:
Median
In a symmetrical distribution 5th decile equals to:
Median
For the given set of observations 1,4,4,4 and 7, it can be said that the:
mean is larger than either median or mode
For given data, discuss the shape of the distribution: X f 0 2 1 3 2 5 3 7 4 5 5 3 6 2
Symmetric curve
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no dear,
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
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
Observed data organized into tabular form is called:
A bar chart
Calculate range for the following data: 22, 22, 30, 32, 37, 48, 60, 88, 90
68
Ranking scale also include the properties of which scale?
*Nominal scale
Interval scale
Ratio scale
All of these
The sum of squared deviations from mean is:
Zero
The difference between estimated value and the population value is called
Random Error
The value of the middle term in a ranked (ordered) data set is called the:
Median
Half of the observations are always larger than:
Median
In a symmetrical distribution 5th decile equals to:
Median
For the given set of observations 1,4,4,4 and 7, it can be said that the:
mean is larger than either median or mode
Observed data organized into tabular form is called:
A bar chart
Calculate range for the following data: 22, 22, 30, 32, 37, 48, 60, 88, 90
68
Ranking scale also include the properties of which scale?
*Nominal scale
Interval scale
Ratio scale
All of these
The sum of squared deviations from mean is:
Zero
The difference between estimated value and the population value is called
Random Error
The value of the middle term in a ranked (ordered) data set is called the:
Median
Half of the observations are always larger than:
Median
In a symmetrical distribution 5th decile equals to:
Median
For the given set of observations 1,4,4,4 and 7, it can be said that the:
mean is larger than either median or mode
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