gracezastrow26
gracezastrow26 gracezastrow26
  • 13-01-2020
  • Mathematics
contestada

What is the probability of pulling out a red marble then a blue marble?

What is the probability of pulling out a red marble then a blue marble class=

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josshyaby
josshyaby josshyaby
  • 13-01-2020

Answer:

Step-by-step explanation:

Total marble = 8+5+4 = 19

n(Y) = 8, n(B) = 4 and n(R) = 5

Prob(R) = 5/17

Prob(B) = 4/16 {one marble is pulled out already}

Prob(R and B) = 5/17 × 4/16

= 5/17 × 1/4

= 5/68

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