Answer:12002/9987
Step-by-step explanation:
Answer:
1/9
Step-by-step explanation:
There are 10 x 9 ways to choose two balls from the urn. Order does not matter, since Carlo must have the larger ball. So there are 10 choose 2 total ways to choose the balls. If Carlos has the 6, Eric can only have balls 1-5, so the answer is 5/45, or 1/9.
Answer:
C
Step-by-step explanation:
Answer:
5 hours
Step-by-step explanation:
The equation to solve this is 7.80h+35=74.
7.80 represents the cost per hour, h represents the number of hours, 35 is the reservation fee, and 74 represents the total money.
7.80h+35-35=74-35
7.80h=39
h=5
Answer:
Step-by-step explanation:
a. #We notice this is a Poisson probability function expressed as:
x-number of occurrences in a given interval.
-mean occurrences of the event
-The mean is calculated as:
#the probability of no accidents in a 15-minute period is :
Hence, the probability of no accident in a 15-min period is
b. The the probability of at least one accident in a 15-minute period. is calculated as:
Hence, the probability of at least one accident in a 15-minute period is
c. The probability of four or more accidents in a 15-minute period is calculated as:
Hence,the probability of four or more accidents in a 15-minute period. is 0.9997