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liubo4ka [24]
3 years ago
14

Help please I will give Brainly

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
7 0

Answer:

15

Step-by-step explanation:

hope this helps

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7 0
3 years ago
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15.
jekas [21]

Using the normal distribution, it is found that 1851 people would have an IQ less than 115.

<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 mean and the standard deviation are given, respectively, by:

\mu = 100, \sigma = 15

The proportion of IQ scores less than 115 is the <u>p-value of Z when X = 115</u>, hence:

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

Z = \frac{115 - 100}{15}

Z = 1

Z = 1 has a p-value of 0.8413.

Out of 2200 people:

0.8413 x 2200 = 1851.

More can be learned about the normal distribution at brainly.com/question/27643290

#SPJ1

5 0
1 year ago
Completing the square x^2 + 10x
IRISSAK [1]

Answer:

x^2 + 10x + 25

Step-by-step explanation:

(B/2) ^2

10/2 = 5

5^2 = 25

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3 years ago
Simplify <br><br> 11x-4x+26<br><br> i need help quick
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<h3>Hey there! </h3><h3 /><h3>\bold{11x -4x +26}\\\bold{COMBINE\ your\  LIKE\ TERMS}\\\bold{11x -4x = 7x}\\\bold{7x+26}\\\boxed{\boxed{\bold{Answer: 7x +26}}}\huge\checkmark</h3><h3 /><h3>\text{Good luck on your assignment and enjoy your day!}</h3><h3 /><h3>~\frak{Amphitrite1040:)}</h3>
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2 years ago
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A leaf fell into a river and traveled 140 meters in 4 minutes how many meters did the leaf travel per minute ​
Alekssandra [29.7K]

Answer:

The answer is 35

Step-by-step explanation:

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2 years ago
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