In the research, it should be noted that this is a Proportion, because worry or not worry is categorical
<h3>What is a proportion?</h3>
A population proportion is the percentage of the population that possesses a particular trait.
For illustration, suppose there are 1,000 people in the population and 237 of them have blue eyes. There are 237 blue eyed people out of every 1,000 people, or 237/1000.
Therefore, it should be noted that this is a Proportion, because worry or not worry is categorical.
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A poll shows that 64% of Americans personally worry a great deal about federal spending and the budget deficit. State whether the parameter of interest is a mean or a proportion.
Answer:
see explanation
Step-by-step explanation:
so, when a=-3, c is -20. now, to find b when a is -3, plug a (which is -3) into the equation b=4a-5 to get b=-17. so b=-17, c=-20. b is obviously larger (remember the negative sign)
when c is 21, a is 5. plug numbers in to get b=15.
when a is 6, there is no clear value for c, so i'd guess undefined. b however is 19
we can plot the line and the points, for problem 4 and all points above the line means that c is greater than b, and when below it's less than. doing this we get when a is 12, when a is 0, and when a is 5. hope this was clear
The sales taxes are $3 : $37,5 x 8/100
The total is 47,79 $ because you do 37,5x8/100+37,5 and this is 40,5$ and after you do 40,5$x18/100+40,5$ and taht makes 47,79$
Answer:
So the best option is c) 0.1912
Step-by-step explanation:
For this case we have a standard deck of 52 cards and we consider the experiment without replacement.
So then we have 13 heart cards and 52-13 = 39 NOT heart cards
In order to find the probability that we select a heart card in the first extraction we have this:
Now for the second extraction we have a total of 51 cards since we select one at the first extraction and we can find the probability of not heart like this:
And for this case we can assume that we have independent events since the extraction of the first and second card are not related events and assuming this we have this probability:
So the best option is c) 0.1912
Answer:
(c, d) = (25, 35)
Step-by-step explanation:
Multiply the first equation by 2.5 and subtract the second one:
2.5(c +d) -(2.5c +1.75d) = 2.5(60) -(123.75)
0.75d = 26.25 . . . . . . . . . simplify
26.25/0.75 = d = 35 . . . . divide by the coefficient of d
60 -d = c = 25 . . . . . . . . . use the first equation to find c
(c, d) = (25, 35)