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lubasha [3.4K]
3 years ago
5

If the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4 then the standard error is

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

Answer:

The standard error is 11.

Step-by-step explanation:

Given : If the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4.

To find : The standard error ?

Solution :

The standard error formula is

SE=\frac{\sigma}{\sqrt{n}}

Where, \sigma=22 is the standard deviation of a normally distributed population

n=4 is the sample size

Substitute the value,

SE=\frac{22}{\sqrt{4}}

SE=\frac{22}{2}

SE=11

Therefore, the standard error is 11.

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kirill115 [55]
Work out length of one second by dividing by 525600, then multiply that answer by 8.333. Answer should be 93026473.1507 miles
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3 years ago
The measure of angle a is twice the measure of angle b the measure of angle c is at least one degree more than the measure of an
Sphinxa [80]

Answer:

Step-by-step explanation:

The measure of angle a is twice the measure of angle b. This means that

a = 2b

The measure of angle c is at least one degree more than the measure of angle a. This means that

c ≥ a + 1

c ≥ 2b + 1

if the sum of the three angles is at least 61 degrees, it means that

a + b + c = 61 - - - - - - - - - - - - - 1

Substituting a = 2b and c = 2b + 1 into equation 1, it becomes

2b + b + 2b + 1 = 61

5b = 61 - 1 = 60

b = 60/5 = 12

c ≥ 2× 12 + 1

c ≥ 25

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b ≤ 12

4 0
3 years ago
Solve for x
alex41 [277]

Answer:

<em>10x + 50 =1 +5</em>

<em>10x=6-50</em>

<em>10x=-44</em>

<em>x=-4.4</em>

Step-by-step explanation:

4 0
3 years ago
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What is the degree of the polynomial of 5x+9
taurus [48]

Answer:

"first"

Step-by-step explanation:

The only variable is x, and this x is to the first power.  So the degree of this poly is "first."

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4 years ago
Create a system of equations to represent the word problem. Then solve using the linear combination/elimination method. Show all
Leno4ka [110]

Answer:

Solution given:

model A printers [a] prints=80books per day

model B printers [b] prints=55books per day

total no of printers =9

no of model A printers be x

and

no of model B printers be [9-x]

According to the question;

ax+(9-x)b=670 books

substituting value of a and b; we get

80x+(9-x)55=670

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25x=670-495=175

x=\frac{175}{25}=7

So;

no of model A printers =x=<u>7</u>

no of model B printers =9-x=9-7=<u>2</u>

<u>is</u><u> </u><u>your</u><u> </u><u>answer</u><u>.</u>

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