Answer:
x = 13
Step-by-step explanation:
Please use " ln " for the "natural logarithm," not " in. "
Then you have: 2 ln 3= ln (x-4)
We need to get rid of the " ln " operator. Rewrite 2 ln 3 as ln 3² = ln (x - 4).
Then 3² = x - 4, or 9 = x - 4, or x = 13
Answer:
I don't understand your ques
Step-by-step explanation:
Answer:
The probability that a randomly selected call time will be less than 30 seconds is 0.7443.
Step-by-step explanation:
We are given that the caller times at a customer service center has an exponential distribution with an average of 22 seconds.
Let X = caller times at a customer service center
The probability distribution (pdf) of the exponential distribution is given by;

Here,
= exponential parameter
Now, the mean of the exponential distribution is given by;
Mean =
So,
⇒
SO, X ~ Exp(
)
To find the given probability we will use cumulative distribution function (cdf) of the exponential distribution, i.e;
; x > 0
Now, the probability that a randomly selected call time will be less than 30 seconds is given by = P(X < 30 seconds)
P(X < 30) =
= 1 - 0.2557
= 0.7443
Answer:Sorry i have no time to read it all bro
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
If 100% is 9 then you need to multiply by 2 to get 200% which is 18.