Assume that adults have IQ scores that are normally distributed with a mean of μ= 105 and a standard deviation Ï =20 . Find the probability that a randomly selected adult has an IQ between 85 and 125 .

Answers

Answer 1

Answer:

0.68268

Step-by-step explanation:

We solve using z score

z = (x-μ)/σ, where

x is the raw score

μ is the population mean

σ is the population standard deviation.

For x = 85

z = 85 - 105/20

z = -1

Probability value from Z-Table:

P(x = 85) = 0.15866

For x = 125

z = 125 - 105/20

z = 1

Probabilty value from Z-Table:

P(x = 125) = 0.84134

The probability that a randomly selected adult has an IQ between 85 and 125 is calculated as:

P(x = 125) - P(x = 85)

= 0.84134 - 0.15866

= 0.68268


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Answer:

10-132-×/÷647 answer hai bro

A math quiz has 10 questions and is scored out of 100. Each question is worth the same. The function S(q) represents the quiz score, S, in terms of the number of correctly answered questions, 2-
Determine whether each statement below is true or false. Select True or False for each statement.
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Answer:  S(q) represents a quantity that changes at a constant rate per unit interval is true and S(q) represents a linear function is true. The rest is false. Hope this helps

Step-by-step explanation:

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Answer:

um......I think 2 figure it out....

Step-by-step explanation:

A car has 15 gallons of gas in its tank. The car travels 35 miles per gallon of gas. It uses 1/35 of gas to go 1 mile.

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Answer:

Step-by-step explanation:

Why are you asking? Why isn't your friend?

The diagram assumes that the angle on the lower left of the triangle is a right angle. If it is not, then I don't think there is a way that this can be solved.

Tan(A) = opposite / adjacent

opposite = 7

Adjacent = 4

Tan(A) = 7/4 = 1.75

A = inverseTan (1.75)

A = 60.60 degrees

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Geometry is hard! ​

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A

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If you pull up a graph you can more accurately see it, I just did it in my head

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Answers

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Answer:

26 and 32 are the two numbers, the product is 832

Which expression is equivalent to 28/19/100

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Answer:

Brainly doesn’t help people

Step-by-step explanation:

Khan Acadmey or Google helps! Trust me this doesn’t help

That other person who commented is dumb

Which equation can you use to solve 150% of 500?

Answers

Answer:

150×500=30, i got you man

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Answers

Answer:

s= -1

Step-by-step explanation:

CAN ANYONE PLZ ANSWER MY LAST QUESTION?????????!!!!!!!!!!!!!!!!

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Answer:

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Answer:

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Answers

Step-by-step explanation:

bring the common ones together

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Answers

Answer: x=5

Step-by-step explanation:

Distribute the 4 to the 2 and 9 and you will get (8x-36)=4.

Then you'd add the 36 to 4 to get 40.

Lastly you'd divide 8 and 40 to get 5. Hope this helps!!!

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Answers

Answer:

its 8 cause 2 times x is 40 40+-40= 0 so 2 times 4 is 8

Step-by-step explanation:

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Answer: 2² * 3=12 1,2,3,4,6,12.

A.

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Answer:

IM JUST ANSWERING SO YOU CAN GIVE THE OTHER GUY BRAINLIEST :) UR WELCOME

oof caps

Step-by-step explanation:

how to find the sale price of an item that has been discounted 25%

Answers

Answer:

Multiply the normal price of the item by .25 and then subtract that from the normal price.

Step-by-step explanation

[tex]x -(x*.25)[/tex]  

x is the item

Step-by-step explanation:

100%-25%= discounted price= 75%

You do the discounted price divided by 75 to find 1%

do that times 100 to find the pre-discounted price.

e.g

find the original price of a sweater when it was on sale of 25%. the sale price is £15.00.

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You are welcome xx

1 +1 = ???????????????????????????

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Answer:

IT 2

Step-by-step explanation:

9.81 rounded to the nearest 10th is what?

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Answer:

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Step-by-step explanation:

An artist mixes colors for a painting. She mixes 1.5 ounces of blue with 2.5 ounces of yellow to get the perfect shade of green. If she determines that she will need 12 ounces of green, how much yellow paint will she need?

Answers

Answer:

4.5 ounces of yellow and 7.5 ounces of blue will create 12 ounces of the perfect shade of green.

Step-by-step explanation:

1.5 + 2.5 = 4 ounces.

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Who voted on red 。 • ゚ 。 .


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Answer:

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Ok ok I think it’s black
Blacks sus

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

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Answers

Answer:

-6+x≤15

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plus: +

a number: variable (I chose x)

Less than or equal to: ≤ (an inequality)

fifteen: 15

Answer:

-6 + n ≤ 15

or

n ≤ 21

Step-by-step explanation:

negative six is -6

plus a number would be a variable (I will use n) + n

is less than or equal to would be ≤

fifteen is 15

-6 + n ≤ 15

If you want to solve it, continue

-6 + n ≤ 15

+6         +6

n ≤ 21

I hope that this helps! :)

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Answers

Answer:

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Step-by-step explanation:

Answer:

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Step-by-step explanation:

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To begin solving this system of linear equations by elimination , you can add the equations . x + 4y = 38 5x - 4y = -30 8x = 8 This step works because of the distributive property B. multiplication property of equality C. commutative property D. addition property of equality

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Step-by-step explanation:

equation 6x + 8y = 24. Determine the slope, y-intercept, and x-intercept and illustrate how you found each of these. Finally, explain what they represent in your word problem.

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Answer:

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Step-by-step explanation:

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Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

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Given:

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The life of light bulbs is distributed normally. The variance of the lifetime is 900 and the mean lifetime of a bulb is 520 hours. Find the probability of a bulb lasting for at most 576 hours. Round your answer to four decimal places.

Answers

Answer:

0.969

Step-by-step explanation:

Given that:

Mean lifetime (m) = 520 hours

Variance = 900

Hence, standard deviation (s) = √900 = 30

Probability that bulb will last for at most 576 hours

X ≤ 576

Obtain the standardized score :

Using the relation :

Zscore = (x - m) / s

Zscore = (576 - 520) / 30

Zscore = 56 / 30

Zscore = 1.867

P(Z ≤ 1.867) : using the z probability calculator ;

P(Z ≤ 1.867) = 0.96905

Hence, P(Z ≤ 1.867) = 0.969

N+ 5/16=-1



:)))) ASAP

Answers

Answer:

Step-by-step explanation:

16N+5=-16 (multiply by 16)

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Please mark brainliest Hope this helps :D

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