Use the above diagram to solve for y. You will NEED to show and discuss the similar triangles in the diagram. You will need to s
et up a proportion for the diagram. And you will need to solve for y. Do NOT round your answer!
You MUST both show math AND have a written explanation of what you did
You MUST both show math AND have a written explanation of what you did
1 answer:
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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:
Putting values, we get,
Standard error =
Thus, the correct answer is
Option B) 9.1