10-05-2020
Mathematics

contestada

When Lucas goes to school, he passes two traffic lights. The probability of showing red is 70% and 80%. How likely is it that at least one of them shows green on the way to school?

Respuesta :

10-05-2020

Answer:

0.44

Step-by-step explanation:

the probability the first one she's green(0.3) plus the probability the second shows green(0.2) minus the probability both occur(0.06) equals 0.44.

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