3 years ago

The circle graph represents the number of teenagers at Corona High School who play video games. If 2,471 students go to the

Mathematics

1 answer:

ira [324]3 years ago

6 0

Answer:

Step-by-step explanation:

544

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Negative 99610=1700 minus 55g

Stella [2.4K]

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-1700 -1700
-101310=-55g
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-55 -55

1842=g

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3 years ago

In a recent report, it was stated that the proportion of employees who carpool to their work is 0.14 and that the standard devia

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n = 179

Step-by-step explanation:

See it in the pic

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3 years ago

Solve These Number Patterns:

irina [24]

1) -512, 1024, -2048. You just multiply by -2.
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4 years ago

The test results for a class with 24 students are normally distributed with a mean of 82 and a standard deviation of 8.9. What i

alekssr [168]

Answer:

The value is $P( X > 80 ) = 0.58901$

Step-by-step explanation:

From the question we are told that

The sample size is n = 24

The mean is $\mu = 82$

The standard deviation is $\sigma = 8.9$

Generally the probability that a randomly chosen student earned a B or higher on the test (score of 80 or higher ) is mathematically represented as

$P( X > 80 ) = P( \frac{ X - \mu }{\sigma } > \frac{ 80 - 82 }{ 8.9 } )$

$\frac{X -\mu}{\sigma } = Z (The \ standardized \ value\ of \ X )$

=> $P( X > 80 ) = P(Z > -0.225 )$

From the z table the area under the normal curve to the right corresponding to -0.225 is

$P(Z > -0.225 ) = 0.58901$

=> $P( X > 80 ) = 0.58901$

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3 years ago

What is one of the roots 2x^2+9-5=0

sp2606 [1]

X=5 this is the root to the equation

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