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MISSION 1 OF 3
Average the pollen readings
R track: IntermediateMission: BeginnerNumeric vectorsArithmetic meanAssignment
Before you start this intermediate track
Numeric vectors and basic averages. Read data-frame columns and logical filters.
Guided code reading and debugging. Runnable coding challenges are available in JavaScript, Python, and SQL.
KNOWLEDGE CHECK
Predict the result.
What text does this script print?
field_notes.R
pollen <- c(3, 6, 9)average <- mean(pollen)label <- "Average:"cat(label, average, "\n")Each mission is a separate base R script. Run it with Rscript; no packages or input files are needed. Quiz answers show the text printed by cat, without a console prompt.
Review the lesson
A field researcher records three pollen readings in one numeric vector. The c function combines values, and mean calculates their arithmetic average. Assign the result with <-, then use cat to print a clean report. This is a first step toward describing a larger collection of measurements.
Choose your answer+25 XP on first completion