The number of students that have both a cell phone and a part-time job
is 40.
The given two-way table about the students of a school is:
Cell Phone No Cell Phone Total
Part-time 40 10 50
No Part-time. 10 40 50
Total 50 50 100
We are to find the number of students that have both a cell phone and a part-time job.
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<h3>What is a two-way table?</h3>
It is a table representing the relationships between two given categories of variables.
Each category of the variable will have one or more than one condition.
And each category of variables is arranged in rows and columns.
The number that is at the intersection of the required row and required column with their given conditions signifies the number of students that satisfies the given conditions.
In the given two-way table, we have two categories of variables.
One variable with two conditions arranged in rows :
- Have Cell Phone
- Do Not Have Cell Phone
Second variables with two conditions arranged in columns :
- Have Part-time
- Do Not Have Part-time
The required condition of students having both a cell phone and a part-time job:
From the given two-way table,
The number that lies at the intersection of the condition Cell phone and Part-time job is 40.
Learn more about Two-way table:
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