Ask your own question, for FREE!
Mathematics 6 Online
OpenStudy (anonymous):

A certain type of light bulb has an average life of 500 hours, with a standard deviation of 100 hours. The length of life of the bulb can be closely approximated by a normal curve. An amusement park buys and installs 10000 such bulbs. Find the total number that can be expected to last for each period of time. More than 440 hours

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
DoltonCarlee: what are y'all's options on S A T essays because honestly their not that bad
1 day ago 4 Replies 2 Medals
Legomaster346: How can I open a bank account?
2 days ago 1 Reply 0 Medals
luisaam2: Helpp
3 days ago 15 Replies 2 Medals
thereneelg: Can someone give me a summary of article 231, The war guilt clause?? I need to explain what it is, but I can't find any shortened version of what it is and
2 days ago 7 Replies 1 Medal
Legomaster346: Can I get the recipe for rotel dip?
3 days ago 9 Replies 2 Medals
luisaam2: What should you do when the person you want to talk to the most is the one making
1 day ago 16 Replies 1 Medal
Breathless: https://medal.tv/games/roblox/clips/nAYivIl6oXB6q9QAI?invite=cr-MSxCSk4sMTY4OTA4N
1 week ago 0 Replies 0 Medals
Twaylor: I'm not that good at law can someone fact check this without bias? June 29, 2026, the Supreme Court decided Chatrie v.
1 week ago 0 Replies 0 Medals
Demon25: For a hoco proposal with a cheerleader and football player, what else should be a
1 week ago 12 Replies 0 Medals
curriful: practicing my coloring criticism desired ud83dude13
1 week ago 10 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!