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Vikentia [17]
3 years ago
5

What is the answer!??

Mathematics
2 answers:
ziro4ka [17]3 years ago
8 0
Hope 131 is the answer to this
nlexa [21]3 years ago
5 0

Answer:

x=131

Step-by-step explanation:

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If we expect to get a number less than 3, sixty times rolling a number cube, how many times would we have rolled? a.60 b.180 c.3
77julia77 [94]

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c. 30

Step-by-step explanation:

60/2=30 can i get brainliest?

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2 years ago
A bag has 2 blue marbles 3 red marbles and 5 white mardies which events have a probability greater than 3? Select three
Sedaia [141]

64

Step-by-step explanation:

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Doss [256]

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1)Rate of change, intersect, one, graph, intersect  (i'm not really sure but this is what i think the answers are for 1)

Step-by-step explanation:

6 0
2 years ago
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The number of text messsages that teenagers send per month is normally
ki77a [65]

Answer:

z=\frac{4415-3400}{450}=2.26

And the explanation of this number is:"The number of text messages for Kendra it's 2.26 deviations above the mean"

Step-by-step explanation:

1) 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".  

2) Calculate the z score

Let X the random variable that represent the number of text messages per month, and for this case we know the distribution for X is given by:

X \sim N(3400,450)  

Where \mu=3400 and \sigma=450

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:

z=\frac{4415-3400}{450}=2.26

And the explanation of this number is:"The number of text messages for Kendra it's 2.26 deviations above the mean"

6 0
3 years ago
What is ratio? I <br><br><br><br><br><br> I will mark Brainiest
Advocard [28]

Answer:

ratio is line from center to end of the circle

Step-by-step explanation:

6 0
3 years ago
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