Answer:



Step-by-step explanation:
Given
The table
First, we calculate the amount of schools


Solving (a): Probability of 75+ computers.
From the given table, schools with 75 or more computers have the population of:


The probability is calculated as:



Solving (b): Probability of less than 75 computers.
From the given table, schools with less than 75 computers have the population of:


The probability is calculated as:



Solving (c): Probability of less than 10 computers.
From the given table, schools with less than 100 computers have the population of:


The probability is calculated as:



Answer:
y = -3
Step-by-step explanation:
{y = x/2 - 4
y = 1 - 2 x
Substitute y = x/2 - 4 into the second equation:
{y = x/2 - 4
x/2 - 4 = 1 - 2 x
In the second equation, look to solve for x:
{y = x/2 - 4
x/2 - 4 = 1 - 2 x
Add 2 x + 4 to both sides:
{y = x/2 - 4
(5 x)/2 = 5
Multiply both sides by 2/5:
{y = x/2 - 4
x = 2
Substitute x = 2 into the first equation:
{y = -3
x = 2
Collect results in alphabetical order:
Answer:
{x = 2
y = -3
Answer:
a part of the population that represents the entire population
Step-by-step explanation:
Answer:
Step-by-step explanation:
that's not really a question