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Katen [24]
2 years ago
10

Answer please I can’t figure it out

Mathematics
1 answer:
Natali [406]2 years ago
6 0
C because it is 2(3/2w +w)=5w
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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
How many solutions does 3(2.4×+4)=4.1x+7+3.1x
Maru [420]

Step-by-step explanation:

3(2.4x+4)=4.1x+7+3.1x\qquad\text{use the distributive property}\\\\(3)(2.4x)+(3)(4)=(4.1x+3.1x)+7\\\\7.2x+12=7.2x+7\qquad\text{subtract}\ 7.2x\ \text{from both sides}\\\\12=7\qquad\text{FALSE}\\\\Answer:\ \text{Zero (no solutions)}.

3 0
2 years ago
I have a question on a homework problem. Select the function that represents an arithmetic sequence.
Fynjy0 [20]
7 ig because I mean if you take a look at the problem
4 0
2 years ago
Simplify the algebraic question 3(2x+5)-4
saul85 [17]
6x+15-4
6x+11
Hope this helps
6 0
3 years ago
Help me asap .... will crown brainiest !
Makovka662 [10]

Answer:

B of course you dummy

Step-by-step explanation:

4 0
2 years ago
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