a sample space, , which is the set of all possible outcomes.
A set of events , where each event is a set containing zero or more outcomes.
The assignment of probabilities to the events; that is, a function from events to probabilities.
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Answer:
The probability is 0
Step-by-step explanation:
Since proportion of time spent on mowing will be 200/400 = 0.5, there will be no chance that the true proportion of time spent mowing is exactly equal to the sample proportion. Where true proportion is 200 and sample is 400 . So the probability is 0.
To simplify 14^(5x+2)<11(4x-1)
x < -2.130032
Answer: Your answer is A, <9 and <5
Step-by-step explanation:
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Answer: 2 nickels
Rachel has 20 coins composed of nickles, dimes and quarters
amounting to $3.70. Her quarters are twice the number of her dimes, the number
of nickels can be computed as follows:
If X= the number of
dimes at .10 each
Then 2x= the number
of quarters at .25 each and
20-(X-2X)= the number of nickels at .05 each
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<span><span>
<span>
The equation will be:
X(.1)+2(X).25+(20-X-2X).10=3.70
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</span>
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</span>
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<span>
.1X+2X(.25)+(20-X-2X).05=3.70
</span>
</span>
<span>
<span>
.1X+.5X+(20-3X).05=3.70
</span>
</span>
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<span>
.6X+(1-.15X)=3.70
</span>
</span>
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<span>
.6X+1-.15X=3.70
</span>
</span>
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<span>
.45X=3.70-1
</span>
</span>
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<span>
.45X=2.70
</span>
</span>
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<span>
X=2.70/.45
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</span>
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<span>
X=6 number of dimes
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</span>
<span>
<span>
2X=12 number of quarters
</span>
</span>
<span>
<span>
20-6-12=2 number of nickels
</span>
</span>
</span></span>
