Respuesta :

ananyababa
There are a total of 20 pens. There are 9 blue pens out of 20 total pens. In decimal format, you have a chance of 0.45 chance. I hope this helps!
konrad509

[tex] |\Omega|=20\\
|A|=9\\\\
P(A)=\dfrac{9}{20}=0.45 [/tex]

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