Answered

Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Explore thousands of questions and answers from a knowledgeable community of experts on our user-friendly platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

 A jar contains five red marbles and three green marbles. A marble is drawn at random and notreplaced. A second marble is then drawn from the jar.
1) Find the probability that the first marble is red and the second marble is green.
2) Find the probability that both marbles are red.
3) Find the probability that both marbles are the same color.

i dont understand how to find 2 & 3, can someone explain please? thank you

Sagot :

[tex]1)\\A-the\ first\ marble\ is\ red\ and\ the\ second\ marble\ is\ green\\\\P(A)=\frac{5}{8}\cdot\frac{3}{7}=\frac{15}{56}\\\\2)\\B-goth\ marbles\ are\ red\\\\P(B)=\frac{5}{8}\cdot\frac{4}{7}=\frac{5}{2}\cdot\frac{1}{7}=\frac{5}{14}\\\\3)\\C-both\ marbles\ are\ the\ same\ color\\\\P(C)=\frac{5}{8}\cdot\frac{4}{7}+\frac{3}{8}\cdot\frac{2}{7}=\frac{20}{56}+\frac{6}{56}=\frac{26}{56}=\frac{13}{28}[/tex]
View image Аноним
Thank you for choosing our service. We're dedicated to providing the best answers for all your questions. Visit us again. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.