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Darina [25.2K]
3 years ago
3

Find P(z > –2.575).

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
8 0

Answer:

Step-by-step explanation:

THe probability that Z is greater than -2.575 is the area

to the right of -2.575 in the std normal curve.

We have std normal distribution has 0.5 area exactly to the right of the mean.

The area to the left of -2.575 in the std normal table is

1-0.4990= 0.0010

Hence required probability

= P(Z>-2.575) = 1-P(Z<-2.575)

= 1-0.0010

=0.9990

brilliants [131]3 years ago
6 0
P(-2,575<z<2.575) corresponds to a 99% confidence interval.

<span>Thus, 1-.99=.01</span>
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The area of a rectangle is 136 square centimeters. The
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2 years ago
Please help asap <br> y+8 = -4(x-3) <br> What’s the slope
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6 0
3 years ago
<img src="https://tex.z-dn.net/?f=-6x%5E4-3x%5E2y%5E2%20%2B%205y%5E4" id="TexFormula1" title="-6x^4-3x^2y^2 + 5y^4" alt="-6x^4-3
Mashutka [201]

Answer:

the answer to the question is 8x⁴- 5x²y² - 6y⁴  

Step-by-step explanation:

the normal way of using BODMAS is apply to all polynomial equations.

subtracting  -6x⁴- 3x²y² + 5y⁴ from 2x⁴ - 8x²y² - y⁴.

polynomial of the same degree is very easy to calculate. this equation is having the same degree of polynomial all through, therefore:

  Applying Bracket to the equation

   2x⁴ - 8x²y² - y⁴- ( -6x⁴- 3x²y² + 5y⁴)

  Open the bracket

   2x⁴ - 8x²y² - y⁴ +6x⁴+3x²y² - 5y⁴

  collects the likes terms

   2x⁴ +6x⁴- 8x²y² +3x²y² - 5y⁴  - y⁴

  The final answer is =

   8x⁴- 5x²y² - 6y⁴  

6 0
4 years ago
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