Answer:
Part (A) The required PMF is:
Part (B) 
Step-by-step explanation:
Consider the provided information.
There are 50 industrial rms. An inspector will visit 10 randomly selected rms to check for violations of regulations.
Part (A)
15 of the rms are actually violating at least one regulation.
Let X is the number of firms violate at least one regulation from 10 randomly selected rms to check for violations of regulations out of 50 firms of which 15 5 of the rms are actually violating.
Therefore, 
We need to determine probability mass function.
Hence, the required PMF is:
Part (B) If there are 500 rms in the area, of which 150 are in violation, approximate the pmf of part.
Here N=500 so find the probability of p as shown below:
and n=10

Answer:
$1573.50
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 5%/100 = 0.05 per year,
then, solving our equation
I = 31470 × 0.05 × 1 = 1573.5
I = $ 1,573.50
The simple interest accumulated
on a principal of $ 31,470.00
at a rate of 5% per year
for 1 year is $ 1,573.50.
Answer:
Unemployment (August) = 35'222/634'512 ≈ 0.0555 ≈ 5.55%
Employed (August) = 634'512-35'222 = 599'290
Labor force (September) = 634'512-156'518 = 477'994
Employed (September) = 599'290-206'024 = 393'266
Unemployed (September) = 477'994-393'266 = 84'728
Unemployment (September) = 84'728/477'994 ≈ 0.177 ≈ 17.7%
Step-by-step explanation:
Answer:
74 papers
Step-by-step explanation:
100-26
The greatest common factor of the numbers is that which is the fused factors of all the numbers without the repetition of the common factors present in the given.
25·5·11 = 5·5·5·11
23·52·7 =23·2·2·13·7
Since, there are no repeated factors, the answer would be,
5·5·5·11·23·2·2·13·7
The answer unfortunately is not among the choices.