CHS Math 1B/Math 1 CR 2020-2021 (Prescriptive) / Part 1. Probably Several students at a university were surveyed about how they
registered for classes, the results are shown in the table. Find
the probability that a randomly selected student is either an
undergraduate or registered online.
Registered Online Registered In Person
211
347
Undergraduate
Graduate
329
581
0.380
0.368
0.144
0.604

Select the correct answer from the drop-down menu. this graph represents the inequality x+2< 4,2x> 3,x+6< 12,2x> 12

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?