Answer: 0.00067 minutes
Step-by-step explanation: if the proportion of customers who wait more than 15 minutes is 0.01, then the time interval between each waiting customer 15/0.01 = 1500 minutes.
The distribution that defines this question is that of an exponential.
An exponential distribution is dependent on the fixed time rate at which the event is occurring (λ)
For this question of ours, λ = 1500 minutes.
The mean of an exponential distribution is given as
u = 1/ λ = 1/1500 = 0.00067 minutes.
Step-by-step explanation:
Some ways to analyze data is by internet research a
or maybe surveys
Answer: Isolate the variable by dividing each side by factors that don't contain the variable.
k = −1
A: 8 x 1/4 = 2, so Roger ran 2 miles. 5280 x 2 = 10560, so Roger ran 10560 feet.
B. Roger already ran 2 miles, so he needs to run 8 more miles to reach his goal. 1 lap = 1/4 mile, so divide 1/4 from 8 to get 32. Roger needs to run 32 more laps this week.
Answer
Yes, this is a valid inference because she took a random sample of the neighborhood.
Step-by-step explanation:
As we can see that Sue's survey was non biased and completely random.
She found that 18% of the families would volunteer to help at the shelter. She claims that 18% of the neighborhood families would be expected to to help at the animal shelter.
So, yes, this is a valid inference because she took a random sample of the neighborhood.