Rate data often follow a lognormal distribution. average power usage (db per hour) for a particular company is studied and is known to have a lognormal distribution with parameters μ = 4 and σ = 2. what is the probability that the company uses more than 270 db during any particular hour?

The probability is 0.0005%

Step-by-step explanation:

We are told that the data follows a lognormal distribution, hence we can use the formula for the probability given by:

Where, in this case, we have

We fin out that the probability that the company uses more thant 270dB during any particular hour is very low, 0.0005%, for the given the parameters μ = 4 and σ = 2 in the lognormal distribution.

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation:

$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316