2.4.42. A dashboard warning light is supposed to flash red if a car’s oil pressure is too low. On a certain model, the probability of the light flashing when it should is 0.99; 2% of the time, though, it flashes for no apparent reason. If there is a 10% chance that the oil pressure really is low, what is the probability that a driver needs to be concerned if the warning light goes on?

The probability that a driver needs to be concerned if the warning light goes on is 0.8462.

Step-by-step explanation:

The conditional probability of an X given that another event Y has already occurred is:

The law of total probability states that:

Denote the events as follows:

A = the light flashes

B = the oil pressure is low.

Given:

Compute the probability that the light flashes using the law of total probability as follows:

Compute the probability that the oil pressure is low given that the light flashes as follows:

Thus, the probability that a driver needs to be concerned if the warning light goes on is 0.8462.

the answer is thin because within context, the stanza concludes the and frail tone the people have toward each other, and the fact that it would be thin, makes the most sense compared to "pliable" or "not hard or firm to the touch". hope this , good luck.

step-by-step explanation:

can i have brainliest

maybe i can