Math Problem Statement
Suppose that a brand of lightbulb lasts on average 2735 hours with a standard deviation of 113 hours. Assume the life of the lightbulb is normally distributed. Calculate the probability that a particular bulb will last from 2540 to 2743 hours?
P(2540 < X < 2743) =
Enter your answer as a number accurate to 4 decimal places.
Solution
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Normal Distribution
Z-score
Formulas
Z-score formula: Z = (X - μ) / σ
Theorems
Properties of Normal Distribution
Suitable Grade Level
Advanced High School
Related Recommendation
Probability of Light Bulb Lifetimes Using Normal Distribution
Expected Number of Light Bulbs Lasting Between 1050 and 1140 Hours Using Normal Distribution
Normal Distribution of Light Bulb Lifetimes: Mean 56 Hours, Standard Deviation 3.2 Hours
Normal Distribution: Component Life Analysis
Probability of Lifespan Exceeding 7 Years Using Normal Distribution