Q. im getting a new smartphone and i think the iphone 5 is a pretty good phone, but all i care about is the battery and people say that the battery in iphones are not good but the galaxy or android phones last longer. I have also heard that there are issues about the battery in the iphone 5. Is getting the iphone 5 for the battery worth it, and how long does it last? what are your best phone suggestions based on battery?
A. "People" don't know what they are talking about apparently. My brother got a new Galaxy S II couple of months ago & has already had to replace the battery cause it started heating up & killing his power. My dad also got a Galaxy S III & has already bought a replacement battery. Android as a whole usually doesn't have good battery life.
The iPhone 5 on the other hand has good battery life. There was an issue when iOS 6.0.1 & 6.0.2 were out but since iOS 6.1 has come out that issue has since been resolved.
The iPhone 5 on the other hand has good battery life. There was an issue when iOS 6.0.1 & 6.0.2 were out but since iOS 6.1 has come out that issue has since been resolved.
What is the probability that a battery lasts between 22 and 30 hours on one charge?
Q. Apple observes that the battery in the iPhone 5 lasts for an average of 26 hours under normal usage. Apple believes that battery life per charge is normally distributed, with a standard deviation of 5 hours.
What is the probability that a battery lasts between 22 and 30 hours on one charge?
please explain!
What is the probability that a battery lasts between 22 and 30 hours on one charge?
please explain!
A. Hello!
This is a branch of probability and statistics called z-score.
A z-score is equal to
z = ((STAT) - mean) / SD
Here, we need the z-scores for 22 hours and 30 hours.
z = (22 - 26) / 5 = -.8
z = (30 - 26) / 5 = .8
Looking a z-score chart we need to find the p-values
p-value of z=-.8 is .2119
p-value of z=-.8 is .7881
To find the probability the battery will last in between 22 and 30 hours, simply subtract the p-value of the upper range (30 hours) with the p-value of the lower range (22 hours)
.7881 - .2119 = .5762 or 57.62% chance the batter will last between 22 and 30 hours
Hope that helps!!!
This is a branch of probability and statistics called z-score.
A z-score is equal to
z = ((STAT) - mean) / SD
Here, we need the z-scores for 22 hours and 30 hours.
z = (22 - 26) / 5 = -.8
z = (30 - 26) / 5 = .8
Looking a z-score chart we need to find the p-values
p-value of z=-.8 is .2119
p-value of z=-.8 is .7881
To find the probability the battery will last in between 22 and 30 hours, simply subtract the p-value of the upper range (30 hours) with the p-value of the lower range (22 hours)
.7881 - .2119 = .5762 or 57.62% chance the batter will last between 22 and 30 hours
Hope that helps!!!
What is the probability a battery lasts for more than 30 hours on one charge?
Q. Apple observes that the battery in the iPhone 5 lasts for an average of 26 hours under normal usage. Apple believes that battery life per charge is normally distributed, with a standard deviation of 5 hours.
What is the probability a battery lasts for more than 30 hours on one charge?
please explain
What is the probability a battery lasts for more than 30 hours on one charge?
please explain
A. It depends. Giving you a probability would be all well and good but completely useless. People buy iPhones to look cool, because they love apple or because its a business phone (in most cases). The chances of the battery lasting that long on standby are quite high, but with normal to heavy usage it will drain within maybe 12hrs. For some people, it might be ok if they charged it once every 2 days but as an iPhone user i charge it every night without fail. so to conclude it is impossible to give an accurate probability although i can safely say it will last 30 hrs on standby
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