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Alexxx [7]
3 years ago
10

On a standardized science test, the seniors at Fillmore High School have a mean score of 430 with a standard deviation of 90.

Mathematics
1 answer:
olasank [31]3 years ago
3 0

Answer:

For random samples of 100 seniors, 68% of the sample means fall between 340 and 520

Step-by-step explanation:

As a property of normal distribution, 68% of sample means fall between mean - sigma(430 - 90 = 340) and mean + sigma (430 + 90 = 520) (here, sigma is standard deviation).

Hope this helps!

:)

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Bess [88]

Answer:

As the described function, we want to find vertical asymtotes, we find the value of x so that the denominator is equal to 0.

Here, (x - 2)(x + 6) = 0

=> x = 2, x =-6

=> Option C is correct.

Hope this helps!

:)

4 0
3 years ago
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SVEN [57.7K]
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8 0
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Sedaia [141]
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6 0
3 years ago
The probability that a newborn baby at a certain hospital is male is 50%. Find the probability that 7 or 8 out of 10 babies born
marin [14]

Answer:

0.1611

Step-by-step explanation:

Uaing the binomial probability relation :

p = 0.5 ; q = 1 - p = 0.5

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Using the relation :

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P(x = 7) = 0.1172

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P(x =8) = 0.0439

P(x = 7 or x = 8) = 0.1172 + 0.0439 = 0.1611

4 0
3 years ago
What is the value of x and the length of the segment?
mylen [45]

Answer:

5x - 13 = x+19

5x-x=19+13

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=5×8-3

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CB=37

AB=X+19

=8+19

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7 0
3 years ago
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