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S_A_V [24]
2 years ago
11

Help me plz thank you

Mathematics
1 answer:
Travka [436]2 years ago
3 0

Answer: 2nd one

Hard to explain

Pls give brainliest.

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About % of the area under the curve of the standard normal distribution is between z = − 0.9 z = - 0.9 and z = 0.9 z = 0.9 (or w
prisoha [69]

Using the normal distribution, it is found that 63.18% of the area under the curve of the standard normal distribution is between z = − 0.9 z = - 0.9.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The area within 0.9 standard deviations of the mean is the <u>p-value of Z = 0.9(0.8159) subtracted by the p-value of Z = -0.9(0.1841)</u>, hence:

0.8159 - 0.1841 = 0.6318 = 63.18%.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

3 0
2 years ago
How many 1/5 liter glasses can fill with 1 1/2 liter bottle of water?
levacccp [35]

Answer:

7 glasses/bottles :)

6 0
3 years ago
Divide.<br>(2x²+17x+28)÷(x+6)<br>​
oksian1 [2.3K]

Answer:

2x2+17x+28/x+6

Step-by-step explanation:

6 0
3 years ago
Which of the following parabolas opens upward and appears narrower than y = −3x^2 + 2x − 1? A. y = 4x^2 − 2x − 1 B. y = −4x^2 +
Kamila [148]
Narrowing it down it's either a or c because the other 2 choices open downward (negative a).
Graphing the 2 parabolas choice c is narrower.
c
7 0
3 years ago
in order to make 5 dozen chocolate chip cookies, I need to use 2 cups of sugar. (a) complete the table, then use the table to dr
sergejj [24]

Answer:

sugar| cookies

(cups) | (dozens)

1        | 2.5

2       | 5

3       | 7.5

4       | 10

Goes up by 2.5 each time

Not sure if this is what you want

Step-by-step explanation:

equation is y = 2.5x

4 0
3 years ago
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