
11202.WedCh05_240306
Quiz
•
Computers
•
12th Grade
•
Practice Problem
•
Medium
Ys Huang
Used 42+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
賦予數值D為 ‘3.45’,使用is.character()函數後以下何者正確?
TRUE
FALSE
BOTH
NONE
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
賦予數值K為rep(c(T,T,F),2),再輸入K後以下何者正確?
TRUE TRUE TRUE FALSE FALSE FALSE
TRUE TRUE FALSE TRUE TRUE FALSE
TRUE FALSE FALSE TRUE FALSE FALSE
TRUE TRUE FALSE TRUE FALSE TRUE
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
賦予數值X為c(2:6),再輸入X後以下何者正確?
1 2 3 4 5
1 2 3 4 5 6
2 3 4 5 6
2 3 4 5 6 7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
賦予數值F為T,使用mode()函數後以下何者正確?
為矩陣
邏輯值
為向量
為數字
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
賦予數值B為3.45,使用mode()函數後以下何者正確?
為文字
為陣列
為向量
為數字
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
賦予數值J為NA,使用mode()函數後以下何者正確?
為矩陣
為文字
邏輯值
為數字
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
賦予數值D為 ‘5.38’,使用as.numeric ()函數後以下何者正確?
變成數字
變成文字
變成矩陣
變成向量
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