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Serjik [45]
3 years ago
5

A number cube was rolled as part of an experiment. The results are in the table below. The fraction 1/x is the experimental prob

ability of rolling a 3. What is x?
Mathematics
2 answers:
Finger [1]3 years ago
4 0

Answer:

hi there,

Dont see the table below, but generally the probability is P(x) x Frequency(x) = 1/x x no. of rolls hope that helps

Step-by-step explanation:


qwelly [4]3 years ago
3 0

The answer is 6 just took test other guy is wrong

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Answer:

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Step-by-step explanation:

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In a certain country, the average age is 31 years old and the standard deviation is 4 years. If we select a simple random sample
KengaRu [80]

Answer: 0.0062

Step-by-step explanation:

Given : Mean : \mu=\ 31

Standard deviation :\sigma= 4

Sample size : n=100

Assume that age of people in the country is normally distributed.

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}

For x = 32

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The p-value = P(x\geq32)=P(z\geq5)

=1-P(z

Hence, the the probability that the average age of our sample is at least =0.0062

3 0
3 years ago
Simplify.
abruzzese [7]

Answer:

2y+4x-18

Step-by-step explanation:

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4x+2y-18

3 0
3 years ago
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Ivanshal [37]

Answer:

28 in.

Step-by-step explanation:

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