alyssafranco alyssafranco

03-07-2020
Mathematics

contestada

There is 0.3 probability that a group of insured motorists have an accident in a decade.
If there are 640 insured motorists, what is the mean number of accidents in a decade?

Respuesta :

shortliz17 shortliz17

04-07-2020

Answer:

192

Step-by-step explanation:

to find the mean you have to use this formula: mean= N(total number of trials) times P( probability of "success")

n=640

p=0.3

640x0.3= 192

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