Match the name of the sampling method descriptions given. Situations:

a. number every name on a list and use a random number generator to select the first 50 numbers
b. selecting a classroom number at random then surveying all the students in that room
c. asking people on the street
d. choosing every 5th person on a list divide the population by age and select 5 people from each age
e. call every 15th phone number on every 5th page of the phone book

Sampling Method:

Systematic
Stratified
Simple Random
Convenience
Cluster

26?

step-by-step explanation:

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form