The life, in years, of a certain type of electrical switch has an exponential distribution with an average life betaequals3. if 300 of these switches are installed in different systems, what is the probability that at most 70 fail during the first year?

Which function is increasing? o a. f(x)=(1/15)* o b. f(x)= (0.5)* o c. f(x)=(1/5)* o d. f(x) = 5*

Whose conclusion is correct? choose all that apply. (two max) elijah emily edward esme

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?