Ask your own question, for FREE!
Mathematics 4 Online
OpenStudy (anonymous):

The heights of 20-29 year old males in the US are approximately normal, with mean 70.4 inches and standard deviation 3.0 inches. a)If you select a male between ages 20 and 29 at random, whats the approximate probability that he is less than 68 inches tall? b)There are roughly 19 million 20 to 29 year old males, about how many are between 67 and 68 inches tall? c)Find the height of 20-29 year old males that falls at the 90th percentile. How would I go about finding these?

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
avisshomes: What should I look for before choosing a co-living space in Gurgaon?
3 hours ago 2 Replies 0 Medals
Twaylor: Time flies doesn't it? I tried to not be the second squeaky wheel of the household and ended up hurting myself and others severely.
2 days ago 12 Replies 2 Medals
clllaaaaaire: any tips? the quality isn't the best because I am using this site on my computer
2 weeks ago 2 Replies 0 Medals
clllaaaaaire: CLOSED
2 weeks ago 0 Replies 0 Medals
Midnight97: Kinda a roleplay story between me and my friend enjoy... Part one Forgive me for all the screenshots.
3 weeks ago 2 Replies 1 Medal
StevenisGhost: what type of song should I make next, and will y'all go check out my new song on
1 week ago 6 Replies 2 Medals
Midnight97: My drawing sure changed over the years look at these two pictures from 2024 to no
3 weeks ago 6 Replies 1 Medal
EdwinJsHispanic: "poem" love is So Beautiful to have. But it's so hard to have. At this point I don't know whether its worth the wait Or if it's just millions of miles to re
3 weeks ago 3 Replies 0 Medals
EdwinJsHispanic: "poem" love is So Beautiful to have. But it's so hard to have. At this point I don't know whether its worth the wait Or if it's just millions of miles to re
3 weeks ago 0 Replies 0 Medals
Breathless: I don't know if this would be considered art, but its close enough I believe, Any
4 weeks ago 3 Replies 0 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!