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4 years ago

What is LN A 12 B I3 C.14 D 16

Mathematics

2 answers:

hodyreva [135]4 years ago

5 0

nevermind

i messed up badly

ZanzabumX [31]4 years ago

3 0

I think it’s B I’m not sure so I hope u get it right

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How to find the volume of this cube

Katena32 [7]

The answer is b because volume=length x width x height

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3 years ago

Find the distance between the points (8,3) and (2,7) the answer must be a whole number

Greeley [361]

Answer:

let (8,3) be (x1,y1)

(2,7) be (x2,y2)

using distance formula

√[(x2-x1)²+(y2-y1)²]

√(2-8)²+(7-3)²

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3 years ago

One sample has Aa Aa One sample has n 10 scores and a variance of s2 20, and a second sample has n 15 scores and a variance of s

siniylev [52]

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,

$S^{2}_{p} = \frac{(n_{1}-1)\times s^{2}_{1} +(n_{2}-1)\times s^{2}_{2}}{n_{1}+n_{2}-2}$

on substituting the given respective values, we get

$S^{2}_{p} = \frac{(10-1)\times 20 +(15-1)\times 30}{10+15-2}$

$S^{2}_{p}$ = 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

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3 years ago

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Answer:

option c is the correct answer

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Answer:

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3 years ago

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