题目
题目

COMM_V 205 101 102 103 2025W1 R Review Quiz

多项填空题

What is the average screen size of the iPhone models except the model with the largest screen size? mean(xxxx[which(screen_size xxx xxx(screen_size))]) Please complete the code. You can only use a vector name, function name, or logical comparison in each blank. mean([Fill in the blank] [which(screen_size [Fill in the blank] [Fill in the blank] (screen_size))])  

查看解析

查看解析

标准答案
Please login to view
思路分析
We are given a fill-in-the-blank coding question that asks for completing an expression to compute the mean of iPhone screen sizes, excluding the model with the largest screen size. The structure of the expression suggests subsetting a vector with which() and a logical condition, then taking the mean. Option 1: first blank = "screen_size". This makes sense because the code operates on a vector named screen_size, which presumably contains the screen sizes of different iPhone models. Using the correct vector name is essential for......Login to view full explanation

登录即可查看完整答案

我们收录了全球超50000道考试原题与详细解析,现在登录,立即获得答案。

类似问题

Suppose you created a vector as follows: mid_score <- c(20, 30, 10, 40). What would the following code return when executed properly? sum(which(mid_score > 20))

except_the_first <- model[-1] The above code creates a vector (named except_the_first) consisted of model names except the first model name in the model vector (i.e., a vector consisting of values in all positions except the first position in model vector).

100 students take an exam and each gets an integer mark between 0 and 100, but 10 of the 100 students are absent on the day and receive a 0. The marks are stored in an R variable called marks and you are interested in calculating the average mark of the students that DID take the exam. Which of the following expressions can be used to compute this? For this question, you can assume that none of the students who attended the exam received a 0.

Let's start with creating the following vector. my_vector <- c(1,2,3,4,5,6,7,8,9,10) After creating the vector, if you execute the following code successfully in R, the output given is 4. [ Select ] sum mean median sd (my_vector >= 4 & my_vector < [ Select ] 5 6 7 8 9 10 ) Please complete the formula. You can only use a single-digit number, name of an aggregate statistics function (such as sum, mean, median, sd, etc.), a logical operator, or an arithmetic operator in each blank.

更多留学生实用工具

加入我们，立即解锁 海量真题 与 独家解析，让复习快人一步！