Answer:
Step-by-step explanation:
60 minutes = 1 hour
The statement would be
"Customers arrive at a checkout counter in a department store according to a Poisson distribution at an average of seven per 60 minutes
If it takes approximately ten minutes to serve each customer, then the mean service time for in minutes for customers arriving during a 1-hour period is
10/60 × 7 = 1.67
In Poisson distribution, variance = mean
Therefore,
Variance = 1.67
The probability that the total service time will exceed 2.5 hours is expressed as P(x > 2.5)
Converting 2.5 hours to minutes, it becomes 2.5 × 60 = 150 minutes
From the Poisson distribution calculator,
P(x > 150) = 0
Let's write the total of gallons in improper fraction:
Step 1: Multiply the denominator by the whole number
6 × 5 = 30
Step 2: Add the answer from Step 1 to the numerator
30 + 1 = 31
Step 3: Write answer from Step 2 over the denominator
5 1/6 = 31 / 6
Let's divide the total gallons by what she used each hour to get the number of hours:
Let convert the improper fraction to mixed number:
93/10 = 9 3/10
<h2>She was driven a total of 9 3/10 hours</h2>
Answer:
π
Step-by-step explanation:
s = (∅/360) * (2πr)
s = (60/360) * (2π*3)
s = (1/6) * (6π)
s = π
Answer:
11
Step-by-step explanation:
I think you just add the ratios together.
