
Lecture_1_revision

Quiz
•
Mathematics
•
Professional Development
•
Easy
Mariam Metawe3
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
choose all possible answers that are measures of central tendency
Mean
Median
Mode
Second Quartile
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Choose all the possible answers
The mean is the red line and the median is the blue
The mean is the blue line and the median is the red line
The mean is more affected by outliers
The median is affected by outliers
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
data1=c(12,80,77,1)
data2=c(550, 630, 650,700)
which data has the larger standard deviation
data1
data2
Both have same Standard Deviation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the best measure of dispersion to Compare the dispersion of the following prices
data1_dollars=c(40, 70, 12)
data2_EGP=c(400, 1200, 770)
Standard Deviation
Inter Quartile Range
Variance
Coefficient of Variation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What this code do:
prices=c(1,6,7,8,9,10,2,3,4,5)
q=quantile(prices,0.1)
Brings the value that 10% of data greater than it
Brings the value that 10% of data less than it
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Negative Skewed
Positive Skewed
Symmetric
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you want to test correlation between two numerical variables, and both variables are Normally distributed and with no outliers. What is the best test of correlation?
None of them
Kendall's
Spearman's
Pearson's
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