brok3morgan
26.03.2020 •
Mathematics
A minority representation group accuses a major bank of racial discrimination in its recent hires for financial analysts. Exactly 16% of all applications were from minority members, and exactly 15% of the 2100 open positions were filled by members of the minority.
a. Find the mean of p, where p is the proportion of minority member applications in a random sample of 2100 that is drawn from all applications.
b. Find the standard deviation of p.
c. Compute an approximation for P ( p leq 0.15), which is the probability that there will be 15% or fewer minority member applications in a random sample of 2100 drawn from all applications. Round your answer to four decimal places.
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Ответ:
13). z = ( 9/13)(C)
Solve for C:
Step 1: flip Equation:
9/13 c = z
Step 2: Divide both sides by 9/13
9/13 c/9/13 = z/9/13
C = 13z/9
Letter Choice, (D), C = 13z/9
12.). Let " h" be the number of hikes:
Expense of First Club:
C * h = 20 + 5h
Expense of Second CluB:
C * h = 7h
20 + 5h < 7h
20 < 2h
h > 10 hikes
The First Club is Less Expensive, If it is more than Ten Hikes.
14.). Co-Efficient of Friction Formula:
ma = F - mw
+ mw + mw (cancel out +mw)
Mw + ma = F - ma
-ma -ma (Cancel out -ma)
Divide: Both sides by w:
Mw/w = F - ma/w
Therefore, Letter Choice, (D), M = F - ma/w
Hope that helps : )