May I ask you please some help in this two questions:
1. On any given day in Alamo City, the probability of a traffic jam occurring is 0.3, and the probability of heavy fog occurring is 0.5. If the probability that there is neither a traffic jam nor heavy fog is 0.4, then what is the probability that there is both a traffic jam and heavy fog?
0.15
0.4
0.8
0.2
2. A factory that manufactures tennis balls is expanding its production capacity. As production capacity expands, engineers calculate that the factory will have the following capacity(C) as a function of days (D) of expansion:
C = [1/3] * [(D/2) + 3]^3
How quickly is the rate of change in capacity increasing on the sixth day of expansion (in units of C/D^2) ?
12
72
22.37
81
Thank you very very much!
1. On any given day in Alamo City, the probability of a traffic jam occurring is 0.3, and the probability of heavy fog occurring is 0.5. If the probability that there is neither a traffic jam nor heavy fog is 0.4, then what is the probability that there is both a traffic jam and heavy fog?
0.15
0.4
0.8
0.2
2. A factory that manufactures tennis balls is expanding its production capacity. As production capacity expands, engineers calculate that the factory will have the following capacity(C) as a function of days (D) of expansion:
C = [1/3] * [(D/2) + 3]^3
How quickly is the rate of change in capacity increasing on the sixth day of expansion (in units of C/D^2) ?
12
72
22.37
81
Thank you very very much!
Last edited by ciurban on Thu Jan 02, 2014 3:55 am, edited 2 times in total.
