Answer:
Explanation:
Punch card is the oldest computer storage; followed by tape and then floppy disk. Hard drive goes back as far as floppy but is still in use today. CD/DVD/BR discs are all later storage but are also used for storing music and videos. USB flash, SD card, SSD and cloud storage are the common technologies used today for data storage.
Answer:
Explanation:
A general idea is that you should repeat the simulation until the results converge. An easy but illustrative example of this is that we want to see if the R function rbinom is accurate in simulating a coin toss with a given probability. We will simulate one coin toss 10000 times, and plot the percentage of heads against the number of coin tosses:
set.seed(1)
n <- 10000
result <- NULL
percent <- NULL
for (i in 1:n) {
result[i] <- rbinom(1,1,0.5)
percent[i] <- sum(result)/i
}
plot(seq(1:10000),percent, type="l")
abline(0.5, 0, lty=2)
Answer:
The number of presentation groups of 3 students that can be selected from a group of 5 students equals 10.
Explanation:
The number of different presenters equals the no of possible combinations of 3 students from a pool of 5 students.
Thus the number of possible combinations equals
Answer:
Finder
Explanation:
The Finder is the default file manager and graphical user interface shell used on all Macintosh operating systems. Described in its "About" window as "The Macintosh Desktop Experience", it is responsible for the launching of other applications, and for the overall user management of files, disks, and network volumes.
- this seems very course reliant, refer to your course if this is not the answer you were looking for.
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