Try this solution (see the attachment, three basic steps, the answer is marked by red colour).
PLEEEEEASSSEEEHELP ME 6TH GRADE MATH
1 answer:
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Answer:
There is a 0.64% probability that the costumer has filed a claim.
Step-by-step explanation:
Probability:
What you want to happen is the desired outcome.
Everything that can happen iis the total outcomes.
The probability is the division of the number of possible outcomes by the number of total outcomes.
Our problem has these following probabilities:
-78% that a costumer is a good risk.
-20% that a costumer is a medium risk.
-2% that a costumer is a poor risk.
Also:
- 0.5% of a good risk costumer filling an accident claim
- 1% of a medium risk costumer filling an accident claim.
-2.5% of a poor risk costumer filling an accident claim.
The question is:
What is the probability that the customer has filed a claim?
, in which:
- is the probability that a good risk costumer is chosen and files a claim. This probability is: the probability of a good risk costumer being chosen multiplied by the probability that a good risk costumer files a claim. So:
- is the probability that a medium risk costumer is chosen and files a claim. This probability is: the probability of a medium risk costumer being chosen multiplied by the probability that a medium risk costumer files a claim. So:
- is the probability that a poor risk costumer is chosen and files a claim. This probability is: the probability of a poor risk costumer being chosen multiplied by the probability that a poor risk costumer files a claim. So:
There is a 0.64% probability that the costumer has filed a claim.