Frage 1
Frage
In Descriptive statistics, you are describing, presenting, summarizing, and organizing your data, either through ______________.
Antworten
-
Numerical Calculations
-
Graphs
-
Tables
-
All of them
Frage 2
Frage
Which of the following is a Measure of Central Tendency?
Antworten
-
Mean
-
Median
-
Mode
-
All of them
Frage 3
Frage
Which of the following is less affected by outliers?
Antworten
-
Mean
-
Median
-
Mode
-
None of them
Frage 4
Frage
Which of the following is not affected by outliers?
Antworten
-
Mean
-
Median
-
Mode
-
None of them
Frage 5
Frage
Which of the following is a Measure of Variability?
Frage 6
Frage
The bigger the range of data the more ________it is?
Antworten
-
Distributed
-
Undistributed
-
Left Skewed
-
RIght Skewed
Frage 7
Frage
Interquartile range (IQR) is the difference between _______.
Antworten
-
Q1 - Q3
-
Q2 - Q3
-
Q3 - Q1
-
None of them
Frage 8
Frage
Range Measures_____________of the datapoint?
Antworten
-
Beginning
-
End
-
Beginning and End
-
IQR
Frage 9
Frage
The interquartile range (IQR) is a Measure of data where___________.
Frage 10
Frage
Variance is the Average of______________from the mean.
Antworten
-
Squared deviation
-
Square root of deviation
Frage 11
Frage
Standard deviation is _____________.
Antworten
-
Square root of Variance
-
Square of Variance
Frage 12
Frage
When you have a low Standard deviation, your data points tend to be _________ the mean.
Frage 13
Frage
When you have a high standard deviation, your data points tend to be ________ the mean.
Frage 14
Frage
Normal Distribution is _____________.
Antworten
-
Bell shaped
-
Left Skewed
-
RIght Skewed
-
None
Frage 15
Frage
Z-Score is used to check how many standard deviations away from the mean, a _________________lies.
Frage 16
Frage
Which of the following are the Terminologies of Probability?
Antworten
-
Event, Outcome
-
Experiment, Probability
-
All of them
-
None of them
Frage 17
Frage
Bernoulli Trials have _________ outcomes.
Antworten
-
Exactly one
-
Exactly two
-
Exactly three
-
Exactly four
Frage 18
Frage
The Binomial distribution is the Probability distribution of the number of successes in _________Bernoulli trials.
Frage 19
Frage
Probability Density Function is the Probability distribution of a ____________ random variable.
Frage 20
Frage
The area under a probability density function gives the probability for the __________ variable to be in that range.
Antworten
-
Continuous random
-
Discrete random
Frage 21
Frage
Taking __________ samples of equal size from the data, the sample means are approximately normally distributed.
Antworten
-
Random
-
Cluster
-
Stratified
-
Systematic
Frage 22
Frage
In a normal distribution the ________________.
Antworten
-
Mean > Median > Mode
-
Mean = Median < Mode
-
Mean = Median = Mode
-
Mean < Median < Mode
Frage 23
Frage
Normal distribution with a mean _____ and a standard deviation of ____ is called a Standard Normal Distribution.
Frage 24
Frage
Central Limit Theorem states that:
If we take means of random samples from a distribution and we plot the means, the graph approaches to a ___________distribution when we have taken a sufficiently large number of such samples.
Antworten
-
Left Skewed
-
Right Skewed
-
Normal
-
None of them
Frage 25
Frage
The Central Limit Theorem also states that the mean of __________ means is approximately equal to the mean of __________means.
Antworten
-
Population, Sample
-
Population
-
Sample
-
None
Frage 26
Frage
A positive Z score indicates that the observed value is Z standard deviations __________ mean.
A negative Z score indicates the observed value is Z standard deviations ____________ mean.
Antworten
-
Below, Above
-
Below
-
Above, Below
-
Above
Frage 27
Frage
______% of data lies within 1 standard deviation of the mean
______% of data lies within 2 standard deviations of the mean
______% of data lies within 3 standard deviations of the mean
Antworten
-
68.27%
99.73%
95.45%
-
68.27%
95.45%
99.73%
-
99.73%
95.45%
68.27%
-
68.27%
95.45%
99.73%