21. A drawer contains 4 pens, 5 pencils, and 2 markers. Yourandomly select somet

Question

21. A drawer contains 4 pens, 5 pencils, and 2 markers. Yourandomly select something to write with from the drawer. TheP(select a pen, a pencil, or a marker) is _____. (Answer in a wholenumber or reduced fraction form.) A drawer contains 4 pens, 5 pencils, and 2 markers. Yourandomly select something to write with from the drawer. TheP(select a pen, a pencil, or a marker) is _____. (Answer in a wholenumber or reduced fraction form.) 21. A drawer contains 4 pens, 5 pencils, and 2 markers. Yourandomly select something to write with from the drawer. TheP(select a pen, a pencil, or a marker) is _____. (Answer in a wholenumber or reduced fraction form.)

Explanation / Answer

total items in drawer is 11 items : : P(marker)=2/11 :
P(pen)=4/11 :
P(pencil)=5/11 :
P(pen or pencil or marker)=2/11+4/11+5/11=11/11=1(100)=100%

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