3 years ago

The red line below is parallel to which of the following?

Mathematics

2 answers:

horrorfan [7]3 years ago

4 0

Answer:

option A

Step-by-step explanation:

X- axis

choli [55]3 years ago

4 0

A . the x-axis

Step-by-step explanation:

The lines never meet

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2 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

Victoria jogged a total distance of miles during the months of June and July. If Victoria only jogged mile every day, which expr

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When converted to a household measurement, 9 kilograms is approximately equal to a

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Answer:

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Step-by-step explanation:

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