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Mashutka [201]
3 years ago
12

Determine whether the events are independent (I) or dependent (D). Place your answer in the blank provided. 1. Ramiro draws a ma

rble from a jar, does not replace it, and then flips a coin.
Mathematics
1 answer:
Stels [109]3 years ago
4 0

Answer:

Independent events

Step-by-step explanation:

Given that:

Ramiro draws a marble from a jar without replacement and then flips a coin

Let E_1 be the event that Ramiro draws a marble without replacement and;

Let E_2 be the event of flipping a coin.

Let's have an analogy so that we can better understand the concept of independent and dependent events.

Consider a random experiment in which a marble is drawn from a jar without replacement and a fair coin is flipped together.

The event E_1  does not in any way affect the event E_2  of a head or a tail showing up in  a flip of a coin.

Therefore, we say that E_1  and E_2   are independent events.

Suppose the event  E_1  affects or influence the event E_2  , then we can say they are dependent events.

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zhuklara [117]

Answer:

The length is 8 cm. Since its a square, so the length of both its sides are equal.

l^2=64

where l=length of side

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then, l=8

4 0
2 years ago
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A student solves a problem correctly 40 times out of 72 tries. Based on this data, what is the probability that the student inco
suter [353]

Answer:

The probability of the student incorrectly solves the next problem is 44%.

Step-by-step explanation:

Let E be the event of solving a problem correctly.

Then E' is the event that the problem is solved incorrectly.

Now, recall the definition of probability.

probability of an event = \frac{number of favorable events}{total number of events}

So,

p(E) = \frac{40}{72}

Also,

p(E) + p(E') = 1 and

p(E') = 1 - p(E)

= 1 - \frac{40}{72}

= \frac{72-40}{72}

= \frac{32}{72}

= \frac{4}{9}

= \frac{4}{9} (100)

= 44% rounded.

Hence, the probability of the student incorrectly solves the next problem is 44%.


4 0
3 years ago
Solve for xx. Express your answer as a proper or improper fraction in simplest terms.
kati45 [8]

Answer:

4/5

Step-by-step explanation:

hope this helps :)

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Dafna11 [192]

Answer:

Not true.

Step-by-step explanation:

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Simplify. 2 - 30 × 5
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