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Answer:
the answer is 5/8, 65%, 2/3, 0.7
Step-by-step explanation:
There is 273 thousands. Remember, take out your zeros. Hope it helps! :)
Answer:
(A)129 Pounds
Step-by-step explanation:
Let x be the number of 23% zink alloy
Therefore:
Since the total result is 516 pounds
The number of pounds of 42% zink alloy =516-x pounds
We then have the resulting equation:
0.23x+0.42(516-x)=0.3725*516
0.23x+216.72-0.42x=192.21
Colect like terms
0.23x-0.42x=192.21-216.72
-0.19x=-24.51
Divide both sides by 129
x=129 pounds
Therefore, the number of pounds of 23% zink alloy that must be mixed is 129 pounds.
Answer:
D
Step-by-step explanation:
sampling distribution is statistical representation of statistics of each sample. So for a class size of 30,
A. number of samples have to be very large and defined in sampling distribtuion so this option is nullified
B. sample collection in sampling distribution is done without replacement of individuals so this option is nullified
C. this explanation doesn't match with the definition so this option is nullified
D. It is the correct option