Which of the tables represents a function? Table
Input
4
3
Table A
Output
3
2
Input
Output
Input
1
3
3
Table B
Output
3
5
7
0
1
Input
4
Table D
Output
1
2
3
2
1
1
4
5
4
Table A
Table B
Table C
Table D
Question 6 Essay Worth 5 points)
(04.02)

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?