Question

The table gives the probabilities that new cars of different models will have brake failure. The car model that is least likely to have a brake failure is model , and the probability of brake failure for this model is %.

Car Model            Brake Failure
                              in New Car
A                            0.0065%
B                            0.0037%
C                            0.0108%
D                            0.0029%
E                            0.0145%
Total 0.0048%

Answer 1

Model D is least likely to have a brake failure.

Explanation:

since when we will compare all the values of the probability of brake failure for the models in % by the following table:

Car Model Brake Failure

in New Car

A 0.0065%

B 0.0037%

C 0.0108%

D 0.0029%

E 0.0145%

Total 0.0048%

We will see that 0.0029% is the least percent among all the other entries.

Hence car model D is most likely to have a least chance of brake failure.

Answer 2

All the information we have are the probabilities, and what we need is the lowest number: so let's choose the smallest probability among the numbers: 0.0065%, B 0.0037%,C 0.0108%,D 0.0029%, E 0.0145%. The smallest of the numbers is 0.0029% -it starts with two 00s and the number that follows, 2, is smaller than all there others - so the smallest probability is in option D - and the model would be the corresponding model (but we're missing some information here)