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Diano4ka-milaya [45]
3 years ago
15

Ardem collected data from a class survey. He then randomly selected samples of five responses to generate four samples.

Mathematics
2 answers:
scoundrel [369]3 years ago
6 0

Solution: The sample mean of sample 1 is:

\bar{x}=\frac{4+5+2+4+3}{5}= \frac{18}{5}=3.6

The sample mean of sample 2 is:

\bar{x}=\frac{2+2+6+5+7}{5}= \frac{22}{5}=4.4

The sample mean of sample 3 is:

\bar{x}=\frac{4+6+3+4+1}{5}= \frac{18}{5}=3.6

The sample mean of sample 4 is:

\bar{x}=\frac{5+2+4+3+6}{5}= \frac{20}{5}=4

The minimum sample mean of the four sample means is 3.6 and maximum sample mean of the four sample means is 4.4.

Therefore, using  his four samples, between 3.6 and 4.4 will Ardem's actual population mean lie.

Hence the option 3.6 and 4.4 is correct

Fantom [35]3 years ago
3 0

Answer: between 3.6 and 4.4

Step-by-step explanation:

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Which equation represents a proportional relationship? Y=-5(x+1). Y=5x+1. Y=-x. Y=1/5x
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4 0
3 years ago
A 8.5<br> B 8.1<br> C 12.5<br> D 12.9
elena55 [62]
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4 0
3 years ago
#14 write the given sentence as an equation. Tim'S age in 7 years will be three times what it was 19 years ago
kobusy [5.1K]
The first thing we must do for this case is to define variables.
 We have then:
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3 0
3 years ago
3x-1=5x+10. and the X= -5 1/2
irga5000 [103]

Answer:

The answer is 1 or infinite solutions

Step-by-step explanation:

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7 0
2 years ago
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