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2 years ago

6

For a standard normal distribution, which of the following expressions must always be equal to 1?

2 answers:

frosja888 [35]2 years ago

8 0

For a standard normal distribution, the expression that is always equal to 1 is P(z≤-a)+P(-a≤z≤a)+P(Z≥a). This expression represents all of the possible values in a curve, or in other words, the total area of a curve. According to standard normal distribution, the total area of a curve is always equal to 1.

Alchen [17]2 years ago

4 0

Answer: D

Step-by-step explanation: Edg.

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kakasveta [241]

The Pythagorean theorem states that the square of the hypotenuse is equal to the sum of the squares of the legs:

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Check all options:

1. c=5, a=3, b=4:

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2. c=14, a=4, b=11:

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3. c=17, a=9, b=14:

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4. c=16, a=8, b=14:

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5. c=17, a=8, b=15:

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Answer: correct options are A and E.

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Step-by-step explanation:

5-2x=-4x-7

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