Answer:
1).B
2).A
3).D
4).B
5).C
6).D
7).D
8).B
9).C
10). I believe it is A
Step-by-step explanation:
I'm sorry, i do not know how to explain this, I hope I helped you in some way and I hope these answers work for you :)
Answer as a fraction = 1/720
Answer in decimal form (approximate) = 0.001388
Answer in percent form (approximate) = 0.1388%
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Explanation:
Let A = 1 to indicate the number of ways to get the names to line up in alphabetical order.
There are B = 6*5*4*3*2*1 = 720 different ways to arrange the six people. Notice how I started at 6 and counted my way down to 1, multiplying all along the way. This can be shortened to factorial notation to say 6! = 720. Or you could use the nPr permutation formula to get the same result (use n = 6 and r = 6).
Once you have the values of A and B, we form the fraction A/B = 1/720 which is the probability of getting the names in alphabetical order.
If you need the answer in decimal form, then use your calculator to find
1/720 = 0.001388
which converts over to 0.1388%
Answer:
Option D is correct
Margin of error(to four decimal places) = 0.0414
Step-by-step explanation:
Given: p = 65% = 0.65 and n = 500
Error of margin (E) is given by:
For a confidence level of 95%,
Substitute the value of , p and n in the above formula to calculate error of margin (E) :
Simplify:
E = 0.0414082288551
Therefore, the margin of error(round to four decimal places) = 0.0414
I can not be B that is for sure It is C hoped that helped