Question

Mariah surveyed 200 people.

• She found that 60% of the people she surveyed had been to Canada.
• She found that 42% of the people she surveyed had been to Mexico.
The table shows one piece of Mariah's data.
Been to Mexico Never Been to Mexico
Been to Canada
Never Been to Canada
16
Enter the number of people Mariah surveyed who have been to both Canada and Mexico​

Answer 1

Explanation:

Answer 2

Number of people who had been to Canada and Mexico both are 68.

Explanation:

Mariah surveyed 200 people.

- She found 60% of the surveyed people had been to Canada.

That means number of people had been to Canada = 200 × 20%

= 200×
`(60)/(100)`

= 120

- She found 42% of the surveyed people had been to Mexico.

That means number of people had been to Mexico = 200 × 42%

= 200×
`(42)/(100)`

= 84

It is given that people who never been to Canada = 16

So the people who had been to Mexico only = 16

Since number of people who had been to Mexico = 84

So number of people who had been to Canada and Mexico both = 84 - 16 = 68

Number of people who had been to Canada only = Number of people who never had been to Mexico

= Number of people had been to Canada - Number of people who had been to both Mexico and Canada

= 120 - 68

= 52