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nevsk [136]
3 years ago
14

Hey can you please help me posted picture of question

Mathematics
1 answer:
Aleksandr [31]3 years ago
7 0
When the events are independent, the probability of both is the product of the probabilities of the individual events.
  P(A∩B) = P(A)×P(B) = 0.7×0.8 =
  D. 0.56
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This should not be in the elementary school section I didn't even learn about this....
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PilotLPTM [1.2K]

Answer:

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Jose surveyed the length of TV commercials (in seconds). Find, to 3 decimal places, the experimental probability that a randomly
Lynna [10]

Answer:

≈0.487

Step-by-step explanation:

I think this is your full question right?

Jose surveyed the length of TV commercials (in seconds). Find, to 3 decimal places, the experimental probability that a randomly chosen TV commercial will last:

Length        Frequency

0-19                   17

20-39               38

40-59                19                    20 to 39 seconds.

60+ 20 to          4

Here is my anwer:

experimental probability = relative frequency = \frac{number of oserved occuerencies}{total number of oserved occuerencies}

Total frequencies = 17 + 38 +18 + 4 = 78

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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
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