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liberstina [14]
3 years ago
8

The life expectancy of a typical lightbulb is normally distributed with a mean of 2,100 hours and a standard deviation of 40 hou

rs. What is the probability that a lightbulb will last between 1,965 and 2,165 hours?
Mathematics
1 answer:
kodGreya [7K]3 years ago
3 0
\mathbb P(1965
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4 years ago
Please help! I will give out brainlist.
Ainat [17]

Answer:

Step-by-step explanation:

This is a Pythagorean Theorem Question

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3 years ago
There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh graders, and the rest are eighth grader
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