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mash [69]
3 years ago
12

EASY MATH!PLEASE HELP ME! I NEED KELP!I WILL MARK BRAINLIEST THANK AND RATE TO THE BEST ANSWER!

Mathematics
1 answer:
nirvana33 [79]3 years ago
4 0

Answer:

500

Step-by-step explanation:

Let the unknown number be n.  Then 1.5n = 750, and n = 500.

750 is 150 percent of 500.

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According to General Social Survey of 2016, the population distribution of number of years of education for self-employed indivi
nikdorinn [45]

Answer:

a) Mean is 12.9

b) Standard Error

i) n = 16, Standard Error = 1

The shape of the sampling distribution means is not normal

ii) n = 49 , Standard Error = 0.5714285714

The shape of the sampling distribution means is normal

iii) n = 121, Standard Error = 0.3636363636

The shape of the sampling distribution means is normal

c)Describe the pattern as n increases

As the number of random samples(n) increases the value for the standard error decreases

Step-by-step explanation:

Central Limit Theorem states that

if the sample size is large (generally n ≥ 30), and the standard deviation of the population is finite, then the distribution of sample means will be approximately normal.

a) 16 residents

Mean = 12.9

Standard Error = Standard Deviation /√n

= 4/√16

= 4/4

= 1

n < 30, hence, The shape of the sampling distribution means is not normal

b) 49 residents

= Mean = 12.9

Standard Error = Standard Deviation /√n

= 4/√49

= 4/7

= 0.5714285714

n > 30, hence, The shape of the sampling distribution means is normal

c) 121 residents

Mean = 12.9

Standard Error = Standard Deviation /√n

= 4/√121

= 4/11

= 0.3636363636

n > 30, hence, The shape of the sampling distribution means is normal

Describe the pattern as n increases

As the number of random samples(n) increases the value for the standard error decreases

3 0
3 years ago
Please help, thank you.
irakobra [83]

Answer:

4:1 is first answer

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5 0
3 years ago
Read 2 more answers
7 meters/20 minutes= x cm/2 hours
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Step-by-step explanation:

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Find the value of x.
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