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11111nata11111 [884]
2 years ago
14

Type the correct answer in each box. Use numerals instead of words.

Mathematics
1 answer:
meriva2 years ago
8 0

Answer:

a=1, b=9, c=-2, d=4

Step-by-step explanation:

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mojhsa [17]

Answer:

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Step-by-step explanation:

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3 years ago
A simple random sample of 20 third-grade children from a certain school district is selected, and each is given a test to measur
ICE Princess25 [194]

Answer:

Option C) 5.62 points  

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 20

Sample mean score = 64

Sample standard deviation, s = 12

Degree of freedom =

=n-1\\=20-1\\=19

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Formula for margin of error:

t_{critical}\times \displaystyle\frac{s}{\sqrt{n}}  

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t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.05} = \pm 2.093  

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Thus, the correct answer is

Option C) 5.62 points

4 0
3 years ago
URGENT. ANSWER ASAP. PROMISE BRAINLIEST+5STARS+THANKS
victus00 [196]
I would have to say (B) ! Good Luck :D
5 0
3 years ago
Read 2 more answers
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