Btw it's an inequality not an equation
P< -9 IS THE ANSWER
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I'm trying to write, less than and equal to
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.
It is more expensive to call him back two times for three hours.
Answer:
196
Step-by-step explanation:
56*3.5=196
plz mark as brainliest
