Introduction

This report demonstrates basic descriptive statistics and a simple plot using R.

Data

Let’s use a small example dataset of student scores.

# Sample data: test scores of 10 students
scores <- c(65, 78, 89, 55, 90, 74, 68, 82, 70, 88)
scores
##  [1] 65 78 89 55 90 74 68 82 70 88
mean(scores)      # Average
## [1] 75.9
median(scores)    # Middle value
## [1] 76
sd(scores)        # Standard deviation
## [1] 11.61847
summary(scores)   # Min, 1st Qu., Median, Mean, 3rd Qu., Max
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##    55.0    68.5    76.0    75.9    86.5    90.0
hist(scores, 
     main = "Histogram of Student Scores", 
     col = "skyblue", 
     xlab = "Scores", 
     border = "white")