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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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72=8×9 times as many
Alexeev081 [22]

Answer:

9x8=72

Step-by-step explanation:

Your welcome

4 0
3 years ago
Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. he converts his speed into miles per hour, as shown below.
oksano4ka [1.4K]
The correct question is
<span>Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. He converts his speed into miles per hour, as shown below
</span>Which ratio is incorrectly written to convert his speed? 

the picture in the attached figure

we know that
The term (5280 ft/1 mi)  is incorrect
"Feet"<span> needs to be on the bottom to cancel with the previous term. 
</span>"Mile"<span> needs to be on top in the numerator so that the answer can be expressed in "miles per hour"
</span>
the correct term is (1 mi/5280 ft)

5 0
2 years ago
Solve by completing the square:
laiz [17]
The answer is 4 trust me bro
8 0
2 years ago
What is the answer to this? −1.3≥2.9−0.6r
Karolina [17]

Answer:

Inequality Form:

r ≥ 7

Interval Notation:

[7, ∞)

Step-by-step explanation:

−1.3 ≥ 2.9 − 0.6r

Rewrite so r is on the left side of the inequality.

2.9 − 0.6r  ≤ −1.3

Move all terms not containing r to the right side of the inequality.  

Subtract 2.9 from both sides of the inequality.

−0.6r  ≤ −1.3 − 2.9

Subtract 2.9 from −1.3.

−0.6r  ≤ −4.2

Divide each term by −0.6 and simplify.

      Divide each  term in −0.6r  ≤ −4.2 by −0.6. When multiplying or dividing both sides of an

      inequality by a negative value, f lip the direction of the inequality sign.

       −0.6r /−0.6 ≥  −4.2 /−0.6

       Cancel the common factor of −0.6.

                  −4.2

          r ≥    ______

                  −0.6

 Divide −4.2 by −0.6.

r ≥ 7

The result can be shown in multiple forms.

Inequality Form:

r ≥ 7

Interval Notation:

[7, ∞)

6 0
3 years ago
Find the slope of the line through each pair of points (6, -10) , (-15 , 15)​
dem82 [27]
<h3><u>Answer:</u></h3>

\boxed{\boxed{\pink{\bf \leadsto The \ slope \ of \ the \ line \ is \ \dfrac{-25}{21}.}}}

<h3><u>Step-by-step explanation:</u></h3>

Two points are given to us and we need to find the slope of the line . The slope of the line passing through points \bf (x_1,y_1 ) \ \& \ (x_2,y_2) is given by ,

\qquad\boxed{\red{\bf Slope = tan\theta=\dfrac{y_2-y_1}{x_2-x_1}}}

Here , the points are ,

  • ( 6 , -10 )
  • ( -15 , 15 )

\bf\implies Slope = \dfrac{y_2-y_1}{x_2-x_1} \\\\\bf\implies Slope =\dfrac{15-(-10)}{-15-6} \\\\\bf\implies  Slope = \dfrac{15+10}{-21}\\\\\bf\implies Slope =\dfrac{-1(25)}{-1(-21)}\\\\ \bf\implies\boxed{\red{\bf Slope =\dfrac{-25}{21}}}

<h3><u>★</u><u> </u><u>Hence </u><u>the</u><u> </u><u>slope</u><u> </u><u>of</u><u> the</u><u> </u><u>line</u><u> </u><u>join</u><u>ing</u><u> </u><u>the </u><u>two</u><u> </u><u>points</u><u> </u><u>is</u><u> </u><u>-</u><u>2</u><u>5</u><u>/</u><u>2</u><u>1</u><u> </u><u>.</u></h3>
5 0
3 years ago
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