Asked by katie
the breaking distance of a Honda CRV can be approximated by a normal distribution, where the mean is 53 meters and the standard deviation is 3.8 meters. Let x be a random variable that represents a braking distance. Find the probability that a randomly selected braking distance is less than 49 meters
Answers
Answered by
MathGuru
Use z-scores.
Formula:
z = (x - mean)/sd
With your data:
z = (49 - 53)/(3.8)
I'll let you finish the calculation.
Once you find the z-score, use a z-table to determine your probability. (Remember that the problem is asking for "less than" 49 meters.)
Formula:
z = (x - mean)/sd
With your data:
z = (49 - 53)/(3.8)
I'll let you finish the calculation.
Once you find the z-score, use a z-table to determine your probability. (Remember that the problem is asking for "less than" 49 meters.)
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