Answer: 1/3
Step-by-step explanation:
Since greater than 4 is 2/3
Answer:
a) 0.383
b) 0.375
Step-by-step explanation:
a) Calculate each z-score.
z = (x − μ) / σ
z₁ = (112 − 118) / 12 = -0.5
z₂ = (124 − 118) / 12 = 0.5
Use a calculator or z-score table to find the probability.
P(-0.5 < Z < 0.5) = 0.6915 − 0.3085 = 0.383
b) 0.383 × 16 ≈ 6. So the expected proportion would be 6/16 = 0.375.
Answer:.01
Step-by-step explanation:
Answer:
The probability that a vehicle would be involved in a tire-related accident is
Step-by-step explanation:
We need to calculate the probability that a vehicule would be involved in a tire-related accident.
We know that, given a tire-related accident (TRA), the probability of it being deadly (D) is 0.05. That is:
We also know that the probability of being involved in a deadly tire-related accident is 0.000004
. We can express that as the probability of having a TRA multiplied by the probability of it being deadly:
Merging the two expressions we have: