The lifespan of a laptop battery is normally distributed. If the mean lifespan of a battery is 4 years with a standard deviation

Question

3 years ago

9

The lifespan of a laptop battery is normally distributed. If the mean lifespan of a battery is 4 years with a standard deviation

of 1.6 years, what is the probability that the next laptop battery you purchase will last between 3.5 and 5.5 years?
CI = (71.98%, 79.45%)
CI = (72.02%, 78.38%)
CI = (70.23%, 80.17%)
CI = (71.41%, 78.99%)

Mathematics

1 answer:

Gemiola [76] · Answer 1 · 2022-05-27T12:50:47+03:00

Gemiola [76]3 years ago

6 0

The answer is :Cl=(70.23%,80.17%)