If x=9 and y=−3, evaluate the following expression:20−5y+2x
2 answers:
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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: