Using Rule of Addition:
<span>It states that : "The probability that Event A or Event B occurs is equal to the probability that Event A occurs plus the probability that Event B occurs minus the probability that both Events A and B occur."
</span><span>
P(A or B) = P(A) + P(B) - P(A and B)
</span> = 0.7 + 0.55 - 0.3
= 1.55
Answer:
The negative effects of computer use on the environment There are several effects computer use has on the environment. Not only does it affect the environment but also human health.
Explanation:
First of all, sometimes people (especially in businesses) print unnecessary large amounts of files, emails or things from the internet which wastes paper and harms trees. People who use computers never really turn off the device which wastes electricity that could have been saved and reduce the amount of burning of fossil fuel.
Secondly, computers are made of heavy metals and dangerous chemicals. Heavy metals including Lead, Mercury,Beryllium,Cadmimum, PCV e.t.c
These metals and chemicals contribute to global warming because from these discarded computers it causes water contamination and air pollution.
A simple scanner. that you by at the stor
