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I am Lyosha [343]
3 years ago
7

Researchers once surveyed students on which superpower they would most like to have. The following two-way table displays data f

or the sample of students who responded to the survey. What percent of students in the sample were male?
Mathematics
2 answers:
lorasvet [3.4K]3 years ago
4 0

Answer:

50%

Step-by-step explanation:

Tpy6a [65]3 years ago
4 0

Answer:

90%

Step-by-step explanation:

idk :)

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WILL GIVE BRAINLIEST
AnnZ [28]

Answer:

I think it's -11/6

Step-by-step explanation:

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3 0
3 years ago
A statistician uses Chebyshev's Theorem to estimate that at least 15 % of a population lies between the values 9 and 20. Use thi
rjkz [21]

Answer:

\mu = 14.5\\

\sigma = 5.071\\

k = 1.084

Step-by-step explanation:

given that a  statistician uses Chebyshev's Theorem to estimate that at least 15 % of a population lies between the values 9 and 20.

i.e. his findings with respect to probability are

P(9

Recall Chebyshev's inequality that

P(|X-\mu |\geq k\sigma )\leq {\frac {1}{k^{2}}}\\P(|X-\mu |\leq k\sigma )\geq 1-{\frac {1}{k^{2}}}\\

Comparing with the Ii equation which is appropriate here we find that

\mu =14.5

Next what we find is

k\sigma = 5.5\\1-\frac{1}{k^2} =0.15\\\frac{1}{k^2}=0.85\\k=1.084\\1.084 (\sigma) = 5.5\\\sigma = 5.071

Thus from the given information we find that

\mu = 14.5\\\sigma = 5.071\\k = 1.084

5 0
3 years ago
Triangle ABC is a triangle with no equal sides. A new triangle congruent to triangle ABC is to be placed on the plane such that
Margarita [4]

Answer:

9

Step-by-step explanation:

im bad at explaining

6 0
2 years ago
35% of f is 14. What is f
Scilla [17]

Answer: 40

Step-by-step explanation:

* Hopefully the work below helps:) Mark me the brainliest:)!!

<em>∞ 234483279c20∞</em>

8 0
3 years ago
If a hat costs 15$ and the sales tax is 10% how much money do you need to buy the hat
GREYUIT [131]

Answer:

the answer would be 16.50

6 0
3 years ago
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