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olga_2 [115]
3 years ago
6

For a standard normal distribution, find:______. P(z < -0.34) Express the probability as a decimal rounded to 4 decimal place

s.
Mathematics
1 answer:
True [87]3 years ago
7 0

Answer:

36.69%

Step-by-step explanation:

Given a standard normal distribution :

P(Z < - 0.34) :

Using the Z distribution table :

Look up the value - 0.3 down the row and 0.04 a cross the column. The value at the intersection of the two points gives the required proportion:

P(Z < - 0.34) = 0.3669

0.3669 as a percentage = 0.3669 * 100% = 36.69%

The value can also be obtained using the Z probability calculator.

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Answer:

E. the product of seven and the difference of b minus two

Step-by-step explanation:

7(b-2)

seven is being multiplied by the difference of b minus 2

So this can be written as the product of seven and the difference of b minus two.

Reasons its not the other answer choices

A. two subtracted from the quotient of seven divided by b would be (7/b) - 2

B. seven added to difference of b minus two would be 7 + (b-2)

C. the quotient of seven divided by b minus two would be 7/(b-2)

D. two subtracted from seven times b would be 7b - 2

Key Vocabulary:

<em>Difference = Subtraction</em>

<em>Product = Multiplication</em>

<em>Quotient = Division </em>

<em></em>

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3 years ago
How to find the probability? Please show your work. Thanks!
Svetllana [295]

The event of the machine working is A\cap B\cap C\cap D, and since the components operate independently, we have

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P(A\cap B\cap C\cap D)=0.99^2\cdot0.94\cdot0.93\approx0.8568

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3 years ago
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