Mathematics College

The mean income per household in a certain state is $9500 with a standard deviation of $1750. The middle 90% of incomes are between what two values

Answers

Answer 1

Answer: The middle 90% of incomes are between $6621.25 and $12378.75 .

Step-by-step explanation:

The critical z-value for 90% confidence = 1.645

Given: Mean income per household  =  $9500

standard deviation = $1750

then,  middle 90% of incomes are between $(9500-(1.645)(1750)) and (9500+(1.645)(1750))

i.e.  middle 90% of incomes are between $6621.25 and $12378.75.

Hence, the middle 90% of incomes are between $6621.25 and $12378.75 .

Related Questions

What type of transformation do you see in the picture? *
A. Translation
B. Rotation
C. Reflection
D. Dilation​

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Rotation————————quizz——-


Which statement best describes the function?
A. The function is always increasing,
B. The function is never increasing
C. The function is increasing when x 0.
D. The function is increasing when x 0

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Answer:

I dont see numbers of a function

Step-by-step explanation:

what is 83 as the sum of three square numbers

Answers

Answer:

The smallest prime with a digit sum of 83 is 3999998999.

Step-by-step explanation:

Answer:

3, 5, & 7

Step-by-step explanation:

3*3= 9

5*5=25

7*7 = 49

9+25+49 = 83

What is the slope of the line perpendicular to the line y=-4x+17

Answers

Answer:

-4

Step-by-step explanation:

Can i plz have brainliest :)

3) One-half of a number plus twelve is sixty.

Answers

Answer

96

Step-by-step explanation:

1/2x+12=60

1/2x=48

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your answer would be 96

One side of a triangle is one-fourth the longest side. The third side is
8 feet less than the longest side. The perimeter is
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The sides have lengths of______ ,___________ , and________ feet.

Answers

Answer:

Step-by-step explanation:

Let's call A the longest side. The others triangle sides are B and C.

We know that B = (1/4)*A  and C = A - 8

The triangle's perimeter is: A + B + C = 118

Substituting the values of sides B and C, we have:

A + (1/4)A + (A-8) = 118

Adding common terms:   (2 + 1/4)A = 118 + 8

                                     (9/4)A = 126    then,  A = 56 feet

                                     B = (1/4)A = 14 ft

                                     C = A - 8 = 48 feet

I hope it works for you

Please help ASAP 50 pts

Answers

Answer:

i belive it is A

Step-by-step explanation:

ssions with Exponents Quiz - Level F
1) Trey's grandmother stores her picture frames in a box. Each side of the box is 20 inches long.
Trey wants to know the volume of the box.
What is the volume of a box with side
lengths that are 20 inches? Use the formula
V = 83, where s is the length of one side.
400 in.
800 in.
20 in.
2,400 in.
8,000 in.
20 in.
20 in.

Answers

Answer:

8000 inv^3

Step-by-step explanation:

If the ratio of purple bikes to red bikes is 8 to 12 and there are a total of 100 bikes, how many of them are red? *A company spent 32% of its annual budget developing a new machine. What fraction of the company's budget was spent developing the new machine?

Answers

Answer:

60 red, they spent 8/25 developing the new machine

Step-by-step explanation:

There are 40 purple and 60 red. (8+12=20, 100/20=5. 8*5=40 12*5=60)

percent means per 100, so it is 32/100 which simplifies to 8/25

Magic proof

Ther u got

If the sales tax rate is 7.5% in North Carolina, then how much would you pay in Raleigh for a pair of shoes that cost $40.00?

Answers

Answer:

$3

Step-by-step explanation:

40*7.5/100= Your answer

HELLPPPP PLEASSe!!!!!!! What’s the answerrr

Answers

34 they are congruent angles

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Answers

Answer:

Answer: 2b+3 = 7

=================================================

Work Shown:

b = unknown number

2b = 2 times a number

2b+3 = the sum of 2 times a number and 3

2b+3 = 7, since the expression above is set equal to 7

Step-by-step explanation:

What is the product of 3/4 and -6/7​

Answers

Answer:

- 63/98 (simplified)

Step-by-step explanation:

3/4=21/28

-6/7=-24/28

21/28*-24/28= - 504/784

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Answers:
—10
8
9
11

Answers

Answer:

9

Step-by-step explanation:

You have to divide each side by 4 so it ends up being X > 9

Please don't respond if you don't know the answer! (It doesn't help at all!)
Tyy!

Answers

Answer:

b

Step-by-step explanation:

Answer:

1/5 or D

Step-by-step explanation:

I dont know how to explain this sorry

Hopefully this helps! Let me know if it's right :3

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Answers

Answer:

x=-8

Step-by-step explanation:

Answer:

-8 or 8

Step-by-step explanation:

Jennifer has 82 small spoons and b big spoons.What is the expression that shows how many total spoons Jennifer has.

Answers

Answer:

82+b=?

Step-by-step explanation:

Sorry if it is not right but in order to get it right I need to know the total spoons  Jennifer has.


Randal's dad is installing a new pool in their backyard. The pool is a square and has an
area of 121ft? Randal's dad will then build a 4 ft wide deck to surround the pool.
What is the outside perimeter of the deck?

Answers

Answer:

76 feet.

Step-by-step explanation:

The side of the pool = square root of 121 = 11 feet.

With the deck the length of 1 side  will be 11 + 2 *4 = 19 feet.

There are 4 sides in the outside perimeter so the answer:

= 4 * 19 = 76 feet.

1.5pt : B I US
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Answers

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Answers

Answer:

2r+(t+r) = (r+t)+2r

Step-by-step explanation:

It is the answer in a different form but still the same you need more info for me to solve it though.

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Answers

Answer:

r = 10

Step-by-step explanation:

The proportion is given by, y=rx

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Answers

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Answers

Answer:

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Step-by-step explanation:

Rational numbers are numbers that can be converted into fractions. For example, the number 3 is a rational number because it can be converted into 3/1

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Answers

Answer:

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Step-by-step explanation:

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-12 x (-8)
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Answers

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I really need this one!!! Help please ♡︎

Answers

Answer:

Each pair of socks equals $8.29.

Step-by-step explanation:

If you divide 24.87 by 3, you get 8.29. So each pair of socks equals $8.29.

8.29$ Hope this helped you

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Answers

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In Mrs. Morales' class, the ratio of boys to girls is 3:7. If there are 30 students in her class,how many of
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Answers

Answer:

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Step-by-step explanation:

Make a table with 3 and 7 like this

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Answers

Answer:

1/3n + 4 = 6

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