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MrRissso [65]
3 years ago
11

Jane Peterson has taken Amtrak to travel from New York to Washington, DC, on ten occasions, of which eight times the train was l

ate. Therefore, Jane tells her friends that the probability that this train will arrive on time is 0.20. Would you label this probability as empirical or classical?
Mathematics
1 answer:
Arturiano [62]3 years ago
8 0

Answer:

Empirical Probability

Step-by-step explanation:

Jane has taken the train 10 times out of which the train came early 2 times. This gives us that:

Pr(train being early)=2/10=0.2

This is a result from an experiment carried out by Jane and is therefore an Experimental/Empirical Probability.

The empirical probability of an event is the ratio of the number of outcomes in which a specified event occurs to the total number of trials in an actual experiment.

Classical probability is a simple form of probability that has equal odds of something happening. Examples are Rolling a fair die, Tossing an Unbiased Coin etc.

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Terrence and Lee were selling magazines for a charity. In the first week, Terrance sold 30% more than Lee. In the
Rus_ich [418]

<em><u>Lee sold 40 magazines</u></em>

Step-by-step explanation:

Equation Model:

Let m be the number of magazines Lee sold.

150%-130%=20%, so if 0.2m=8 then m=40

Let me show another way: In the image above 20% is equal to 8 so if we use 8 and 20% and try to reach our way up to 100% (How much Lee sold in total) then we will get our answer.

20%=8

40%=16

60%=24

80%=32

100%=40

Therefore Lee sold 40 magazines.

Hope that makes sense! If you have any more questions or need further clarification then please comment down below or message me! Good luck!

4 0
3 years ago
1. Roots, y-intercepts, and zeroes all have the same meaning?<br> A. True<br> B. False
Nadusha1986 [10]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
6.5 + (−2) + 10.5 I could probably do this but its kind of hard to understand. Explain?
elena-s [515]
Hello! Let's work this problem from left to right to make things a bit easier ;)

6.5+(-2) is the same as 6.5-2, since adding a negative is the same as subtracting a positive. 6.5-2=4.5

Now, we have to add 10.5 to 4.5, which gives us the grand total of 15. I hope this helped! Let me know if you need anything else!
6 0
3 years ago
Find the solution set. |x| = -4 A. { } B. {-2, 2} C. {-4, 4} D. {-16, 16}
Ray Of Light [21]

Answer:

A. { }

Step-by-step explanation:

Absolute value cannot be less than zero.

-4 < 0

There is no solution for x, ∈, R.  

Hope this helps.

6 0
3 years ago
??????????????????????????????????
lina2011 [118]

Answer:

2x + 4 I would assume

3 + 1 = 4

(combining like terms)

6 0
3 years ago
Read 2 more answers
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