WorksheetsStato war ,2nd Mscs
Total questions: 20
Worksheet time: 13mins
Statistics branches include?
Applied statistics
Mathematical statistics
Industry statistics
Both applied and mathematical statistics
The data which have already been collected by someone is called?
Raw data
Array Data
Secondary data
Primary data
The number of accidents in a city during 2020 is
Discrete variable
Continuous variable
Qualitative variable
Quantitative variable
Questionnaire survey method is used to collect
Secondary data
Qualitative data
Quantitative data
Primary data
Which of the following is based on all the observations
Mode
Arithmetic mean
Median
None
Which one is not the measure of dispersion
Range
Variance
50th percentile
None
Lack of symmetry is called
Absolute dispersion
Relative dispersion
Skewness
Symmetry
The most repeated or popular value in a data set is called
Median
Arithmetic mean
Mode
Harmonic mean
The geometric mean of -2,4,3,6,0 will be
-3
0
Cannot be computed
None of these
If a distribution has two modes then this distribution is called
Uni modal
Bi modal
Tri modal
Multi-modal
Find the median of the following data 160,200,300,280,180,320,400
140
300
280
180
In a week the prices of a bag of rice were 350, 280, 340, 290, 320, 310, 300.
The range is..
70
90
Hundred
60
If the standard deviation of a population is 9 the population variance is
9
3
27
81
A dice is thrown... find the probability of getting an even number
2/3
1
5/6
1/2
Two dice are thrown simultaneously, the probability of getting a sum of 9 is
1/10
4/36
2/36
3/10
What is the probability of getting 53 Mondays in a leap year?
1/7
53/366
2/7
7/366
E(xy) = E(x).E(y)
Is it true or false,
If x and y are independent
True
False
The mean of the binomial distribution is
npq
d
P
np
The normal distribution has parameters
1
3
2
4
How many types of correlation coefficients are there
4
5
2
3
