Data Types

5 min. | Beginner

Integers int represent whole numbers, either positive or negative.

Floating-point numbers float represent decimal values, either positive or negative.

Booleans bool represent True or False values, often used in conditionals.

Strings str are sequences of Unicode characters.

The value None represents the absence of a value.

Data Types: Exercise 1

Calculate the slope from these two points (2, 3) and (5, 11).

Data Types: Exercise 2

Calculate the percentage change if price goes from 120\$ to 150\$ (answer should be in decimal format; i.e. 0.3 for 30\% )

Data Types: Exercise 3

A student has grades: 80 (weight 30\%), 90 (weight 50\%), 70 (weight 20\%). Calculate the grade of the student.

Data Types: Exercise 4

Two independent events A and B have probabilities P(A)=0.3 and P(B)=0.5. Calculate the probability that both events occur P(A \cap B).

Data Types: Exercise 5

A population of 1000 grows at 5\% per year, compounded annually. Calculate population after 3 years using:

P = P_{0}*(1 + r)^t