Tuesday, April 9, 2013

Is there a tweak in Cydia to get a battery percentage next to the battery icon on an iPod Touch 3g?

Q. It's Jailbroken on iOS 4 firmware. Is there a tweak or something to have the battery percentage displayed in the STATUS BAR next to the battery. (Like iPhone 3gs) I'm aware of the tweaks to get the battery percentage displayed on the lockscreen. I just want it in the status bar, thanks :)

A. contact dev teams..

how long is the iphone 5 battery and is it worth it?
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.

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!

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!!!




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