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schepotkina [342]
3 years ago
14

What is the probability that a value falls in the interval μ ± 2σ, that computes the probability P(-2 < Z < 2). Round to f

our decimals and use leading zeros
Mathematics
1 answer:
bija089 [108]3 years ago
8 0

Answer:

0.9544    

Step-by-step explanation:

P(-2 < Z < 2) means that Z has mean 0 and standard deviation 2.

P(−2 < Z < 2) = F(2) - F(-2)

Using the Z - table,

F(2) = 0.9772

and F(-2) = 0.0228

Thus,

P(−2 < Z < 2) = 0.9772 - 0.0228 = 0.9544

This means that data within two standard deviation is 95%.

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Answer:

The terms are - 1, 7 and 15.

Step-by-step explanation:

Let the terms be a-d, a and a+d

ATQ, a-d+a+a+d=21, a=7. a+d-(a+(a-d))=9. d=8. The terms are - 1, 7 and 15.

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Step-by-step explanation:

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3 years ago
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Simplify the expression (2sqrt27) x (3sqrt32)
mars1129 [50]
The first step for solving this expression is to simplify the radical in the first set of parenthesis.
(6\sqrt{3}) × (3\sqrt{32})
Simplify the radical in the second set of parenthesis.
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Remove the parenthesis off of both sets.
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Now calculate thee product to find your final answer.
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This means that the correct answer to your question is going to be 72\sqrt{6},, or option B.
Let me know if you have any further questions. 
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What is an example of all data collected on a group
vampirchik [111]

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Direct Observation

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Some of the most common qualitative data collection techniques include open-ended surveys and questionnaires, interviews, focus groups, observation, case studies, and so on.

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