The probability that student fred sotiropulus takes history 101 next semester is 0.6 and the probability that he takes psychology 101 is also 0.6. what is the probability that he takes at least one of these two courses next semester?

Asap will give brainliest and a lot of points

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics