Mathematics, 23.04.2021 21:30 xojade

The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1800 hours and a standard deviation of 85 hours. Using the empirical rule,
what percentage of light bulbs last between 1630 hours and 1970 hours?
12 points

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:30, lilrel8602

Karen is financing $291,875 to purchase a house. she obtained a 15/5 balloon mortgage at 5.35%. what will her balloon payment be? a. $220,089.34 b. $219,112.46 c. $246,181.39 d. $230,834.98

Answers: 2

continue

Mathematics, 21.06.2019 17:00, Geo777

Suppose a pendulum is l meters long. the time, t,in seconds that it tales to swing back and forth once is given by t=2.01

Answers: 1

continue

Mathematics, 21.06.2019 21:30, stichgotrich849

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Answers: 3

continue

Mathematics, 21.06.2019 23:00, Izzyfizzy1

The value of cos 30° is the same as which of the following?

Answers: 1

continue

You know the right answer?

The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1800...