Mathfinition
What do we call a relationship that assigns exactly one output to each input?
FUNCTION
If f(x)=x+2, what is f(3)?
5
What type of function uses different rules for different intervals of the domain?
PIECEWISE FUNCTION
Is a learner's favorite subject qualitative or quantitative data?
QUALITATIVE
Find the mean of 4, 6, and 8.
6
What is the average obtained by adding all values and dividing by the number of values?
MEAN
If f(x)=2x+1, find f(4).
9
If f(x)=x+3 when x<5, find f(2).
5
Is the number of siblings discrete or continuous data?
DISCRETE
Find the median of 11, 7, 9, 5, and 3.
7
What do we call data that can be counted and expressed in whole numbers?
DISCRETE DATA
A printing shop charges ₱5 per page. Write a function for printing (x) pages.
C(x)=5x
f(x) = 2x, when x geq 4
f(x) = 2x +2, when x<2
find f(6).
12
What do we call data presented as individual values without class intervals?
UNGROUPED DATA
If Q1=10 and Q3=20, find the IQR.
10
What measure identifies the middle value when data are arranged in order?
MEADIAN
If f(x)=X2-3, find f(5).
22
f(x)=x+1when x<3,
f(x)=2x when x geq3,
find f(4).
8
What do we call data organized into class intervals with corresponding frequencies?
GROUPED DATA
Given the data set 2, 4, 6, 8, 10, 12, 14, find the IQR using the median-of-halves method.
IQR= 8
What statistical measure describes how far data values are spread out from the mean?
STANDARD DEVIATION
A delivery service charges a fixed fee of ₱40 plus ₱15 per kilometer. Write a function and find the cost for 6 kilometers.
C(x)=40+15x; ₱130
A photocopy shop charges ₱2 per page for the first 10 pages and ₱1.50 per page for every page beyond 10. How much will 15 pages cost?
₱27.50
A teacher records the scores 10, 12, 15, 18, and 20 individually. This is an example of what data?
UNGROUPED
Given the data set 3, 5, 7, 9, 11, 13, 15, 17, find Q1, Q3, and the IQR using the median-of-halves method.
Q1 = 6
Q3 = 14
IQR= 8