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sineoko [7]
2 years ago
15

For the total population of a large southern city, mean family income is $34,000, with a standard deviation (for the population)

of $5,000. Imagine that you are taking subsample of 200 city residents. What is the Z score for $33,000?
Mathematics
2 answers:
BigorU [14]2 years ago
8 0

Answer:

Z= -2.83

Step-by-step explanation:

The formula for calculating z-score is :

Z= \frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}} }

\bar{x} = 33000

μ = 34000

n = 200

σ = 5000

Putting all values,

Z= \frac{33000-34000}{\frac{5000}{\sqrt{200}} }

⇒ Z= -2.83

Oliga [24]2 years ago
6 0
It will be 43.800 you welcome and that was hard
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Answer: 4.17

$1.19 *3.5 = 4.165

Step-by-step explanation:

first multiply the two numbers. then round to the nearest cent. since there is a 5 behind the 6 you round up 7. it there would of been a 4 or less behind the 6 you would round down to 6.

Answer: 4.17

5 0
2 years ago
01:57:09 In a city, the distance between the library and the police station is 3 miles less than twice the distance between the
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Answer:

Distance between the police station and the fire station be 4 miles

Step-by-step explanation:

Let distance between the police station and the fire station be x miles.

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Also, distance between the library and the police station is 5 miles.

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8 0
2 years ago
What value digit in 2,417 is ten times as value of the digit in 2,147
3241004551 [841]

Answer:

4 in 2,417

4 in 2,147

Step-by-step explanation:

the place value of 4 in 2,417 is HUNDREDS

while the place value of 4 in 2,147 is TENS

Therefore the place value of 4 in 2,417 is ten times the value of 4 in 2,147

3 0
2 years ago
kayla puts together gift boxes of fruit to sell at her fruit stand. She places exactly 6 pieces of fruit in each box. She only s
Rudiy27

Answer:

Whats the question

Step-by-step explanation:

3 0
2 years ago
A 20-inch diameter bicycle tire rotates 200 times.
fenix001 [56]

Answer: B)1,047 feet

Step-by-step explanation:

Hi, to answer this question, first, we have to calculate the circumference of the tire:

Circumference(C): π x diameter

C = π (20) = 62.83 inches.

Since 1 foot is equal to 12 inches.

62.83 ÷ 12 = 5.23 feet

Finally we have to multiply the result by 200:

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Feel free to ask for more if needed or if you did not understand something.

8 0
2 years ago
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