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LinkedIn R Skill Assessment
|
Exam Type: | LinkedIn Test Answers |
| Expected positions: | Top 5%, Top 15%, Top 30% | |
| Last Updated: | December 2024 |
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LinkedIn R Exam Answers 2024
Linkedin R assessment questions
Which choice does R regard as an acceptable name for a variable?
- Var_A!
- Var2_A
- _VarA
- .2Var_A
Linkedin R skill assessment answers
What is the principal difference between an array and a matrix?
- A matrix can have columns of different lengths, but an array's columns must all be the same length.
- A matrix has two dimensions, while an array can have three or more dimensions.
- An array is a subtype of the data frame, while a matrix is a separate type entirely.
- A matrix may contain numeric values only, while an array can mix different types of values.
Linkedin R skill assessment
Which is not a property of lists and vectors?
- Length
- Attribute
- Scalar
- type
Linkedin R assessment answers
In the image below, the data frame on lines 1 through 4 is named StDf. State and Capital are both factors. Which statement returns the results shown on lines 6 and 7?
- StDf[1:2,]
- StDf[1,2,]
- StDf[1:2,1]
- StDf[1:2,-3]
Linkedin R assessment Quiz answers
Which function displays the first five rows of the data frame named pizza?
- first(pizza,5)
- BOF(pizza,5)
- top(pizza,5)
- head(pizza,5)
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