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Mandarinka [93]
1 year ago
8

Mario and Bowser begin with a hat that has 5 balls in it: 3 are red, 2 are green. Bowser secretly picks a ball and tells Mario i

t is red, although he might be lying about the color. If there is an 80% chance Bowser is lying, what is the probability that Mario draws 2 red balls in a row after Bowser's initial draw?
Mathematics
1 answer:
dangina [55]1 year ago
5 0
20% probability. because 100-80=20 so therefore it would be 20%
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Leanne works at a restaurant. For dinner, there is a choice of 3 main dishes and 2 sides.
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Answer:

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Step-by-step explanation:

8 0
1 year ago
Two non-simultaneous events have an equal likelihood of occurring (50%). If the events are independent of each other, what is th
Norma-Jean [14]
1/2 * 1/2 = 1/4 there is a 25% chance that they will both occur
7 0
1 year ago
The highest recorded temperature during the month of July for a given year in Death Valley, California has an approximately norm
S_A_V [24]

Answer:

P(X

And we can find this probability using excel or the normal standard tabe and we got:

P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the temperatures of a population, and for this case we know the distribution for X is given by:

X \sim N(123.8,3.1)  

Where \mu=123.8 and \sigma=3.1

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability using excel or the normal standard tabe and we got:

P(z

6 0
2 years ago
Sam spent 5/6 of an hour at the dentist’s office. He spent 1/10 of the time in the waiting room. How much time did he spend at t
svp [43]
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4 0
1 year ago
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Alina [70]

Answer:

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Step-by-step explanation:

Let's call 'x' the number of trades they will do.

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To find the number of trades when they will have the same amount of cards, we have that:

20 + x = 44 - x

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x = 12 trades

8 0
2 years ago
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