In a statistics class there are 21 juniors and 5 seniors: 2 of the seniors are females, and 11 of the juniors are males. If a student is selected at random, find the probability of selecting a senior or a female. O A. 0.115385 O B. 1 OC.0.884615 O D. 0.576923

Q: Explain again step 3 ? I don't understand.

A: It is clear that the function f(t) has jump discontinuity at (n,0) where n is an integer.

Q: (1) For what value c on the interval [-10, 10] can the second derivative test be used?

A: Second derivative test is used to check if a critical point is a local minimum or maximum.  So we…