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stiks02 [169]
3 years ago
5

What is the error of the problem? I don't quite understand but I'll like if anyone can explain it to me :)))

Mathematics
1 answer:
egoroff_w [7]3 years ago
7 0

Answer:

im sorry so i dont understand i need more info

Step-by-step explanation:

Sorry

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The standard deviation of the distribution of sample means is​ _______.
luda_lava [24]

Answer:

Standard error

Step-by-step explanation:

The standard deviation of the distribution of sample means is called the standard error of the means.

It is denoted by: \sigma_{\bar X}

The standard error is calculated using the formula: \sigma_{\bar X}=\frac{\sigma}{\sqrt{n} }

where n is the sample size and \sigma is the population standard deviation.

6 0
3 years ago
Select the correct answer.
EleoNora [17]
B? I think ( do not come at me if it’s wrong)
6 0
3 years ago
-59 = -(b − -55) I keep getting these wrong on IXL... my brain hurts
Amanda [17]

-59 = -(b − -55)

Pretend that there is a -1 in front of the bracket.

-59= -1(b--55)

Multiply the bracket by -1

-59= -1(b)-1(--55)

-59= -b-55

Move -55 to the other side. Sign changes from -55 to 55

-59+55= -b-55+55

-59+55= -b

-4= -b

Multiply by -1

-4(-1)= -b(-1)

4= b

Answer: b= 4

7 0
3 years ago
Thanh has scores of 54, 83, 67, and 73 on his first four math exams. What score must he make on the fifth exam to have an averag
miv72 [106K]
To solve this, you would set up the equation to find the arithmetic mean of the data. This equation is (53+83+67+73+x)/5=70, where x=the score of the fifth exam. First, you combine the constants to get (276+x)/5=70. Then, multiply both sides by 5 to get rid of the denominator, to give you 276+x=350. Then subtract 276 from each side to get x=74. So, Thanh needs to score a 74 on his last exam to get a 70 in the class.
5 0
3 years ago
What is the lateral surface area of the triangular pyramid?
34kurt
I would think c but I’m not completely sure sorry if it’s Wrong
8 0
3 years ago
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