2 years ago

Somebody please answers these!!!!

1 answer:

4 0

Answer: 1: B

Step-by-step explanation:

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3 years ago

marissa [1.9K]

7 + 3 + 98

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Swap the n with the 7

7-5

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1 year ago

lakkis [162]

Answer:

Option B) 9.1

Step-by-step explanation:

We are given the following in the question:

Average score = 490.4

Standard deviation = 63.7

Sample size, n = 49

Formula:

$=\dfrac{\sigma}{\sqrt{n}}$

Putting values, we get,

Standard error =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{63.7}{\sqrt{49}} = 9.1$

Thus, the correct answer is

Option B) 9.1

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2 years ago

e-lub [12.9K]

The answer would be 50 and 37.

50-37 = 13

50+37 = 87

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2 years ago