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AleksandrR [38]
3 years ago
12

I need help I need help Anyone please

Mathematics
1 answer:
stellarik [79]3 years ago
5 0

Answer:43.1738

Step-by-step explanation:

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population mean =72 and standard deviation =10, what is standard error of distribution of sample means for n=4 and n=25
mixer [17]

Answer:

<u>The standard error of distribution for n = 4 is 5 and for n = 25 is 2.</u>

Step-by-step explanation:

1. Let's review the information given to us for solving the question:

Population mean = 72

Standard deviation  =  10

Sample₁ = 4

Sample₂ = 25

2. For finding the standard error of the mean, we use the following formula:

Standard error = Standard deviation / √Size of the sample

Standard error for Sample₁ = 10/√4

<u>Standard error for Sample₁ = 10/2 = 5</u>

Now, let's find the standard error for Sample₂

Standard error for Sample₂ = 10/√25

<u>Standard error for Sample₂ = 10/5 = 2</u>

4 0
3 years ago
What is the vertex of the parabola -2=3(x+3)^2?
Volgvan

Answer:

P(-3 , -2)

Step-by-step explanation:

7 0
3 years ago
Select the inequality that corresponds to the figure
Gnoma [55]

Answer:

Although the Line is included in the region, I will say the your answer is B and D

Step-by-step explanation:

The region shaded is below the Line graph, son we have a < sign, now, I can see the region including the Line graph, so I will say that the inequality should have the = sign, nevertheless no options include the =sign, so, if it is nothing missing, your answer should be:

y<x

3 0
3 years ago
4. The length of Marshall’s rectangular poster is 2 times its width. If the perimeter is 24 inches, what is the area of the post
lubasha [3.4K]
The length is 7 with a width of 5, so the area is 35
3 0
4 years ago
HELP ASAP PLEASE!!!!!
nataly862011 [7]

The answer is A. a=(-1) b=(7)

5 0
4 years ago
Read 2 more answers
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