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Answer:
Option B
Step-by-step explanation:
Use Desmos graphing calculator for these probloms and type your qustion on the left box
A boxed lunch costs $7.01 how much would 9 boxed lunches cost
2 answers:
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Answer:
option (a) It will be closer to 30 than to 20
Step-by-step explanation:
Data provided in the question:
For sample 1:
n₁ = 10
variance, s₁² = 20
For sample 2:
n₂ = 15
variance, s₂² = 30
Now,
The pooled variance is calculated using the formula,
on substituting the given respective values, we get
or
= 26.0869
Hence,
the pooled variance will be closer to 30 than to 20
Therefore,
The correct answer is option (a) It will be closer to 30 than to 20