Ernesto made a graph of the distance (y), in miles, he can ride a bicycle in x hours. ernesto can ride 5.5 miles in 0.5 hour. which point on the graph represents ernesto’s rate of travel, in miles per hour?

select one:

a. (1, 5.5)

b. (0, 5.5) incorrect

c. (1, 11)

d. (0, 11)

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75