25 mice were involved in a biology experiment involving exposure to chemicals found in ciggarette smoke. developed at least tumor, 9 suffered re[iratory failure, and 4 suffered from tumors and had respiratory failure. A) how many only got tumors? B) how many didn't get a tumor? C) how many suffered from at least one of these effects?

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EugenieY686967 EugenieY686967 · Answer 1 · 2022-11-03T19:23:34+01:00

Explanation:

The total number of mice for the experiment is

[tex]Universalset=25[/tex]

How to know how many mice didn't have a tumor?

Identify the total mice who did not have any effects or the effects did not include a tumor.

The number of mice that had respiratory failur is

[tex]n(R)=9[/tex]

Based on this, it can be concluded 9 mice did not have a tumor,

Hence,

The number of mice that didnt have a tumor is 9

To figure out the number that got only tutmor, we will consider the number that has both tumors and respiratory failure

[tex]n(T\cap R)=4[/tex]

The number that developed tumors is given below as

[tex]n(T)=15[/tex]

Hence,

The number that got