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散布図でサンプル群の関係を説明する

研究発表を想定し、散布図を使ってサンプル間の関係性や分布傾向を説明するための表現例。

図表散布図

💡Key Phrases and Explanations

Each point represents a sample

散布図の基本フレーズ

研究ではサンプルや試行を指すことが多い。

Clusters tightly / more spread out

「まとまりが強い」「広がっている」

群間比較やばらつきを表現するのに適する。

Homogeneous expression

均一な発現

研究データで群の性質を説明するときの有用な表現。

Higher variability

より高い変動

群の一貫性やばらつきを評価するときの一般的な語彙。

Overlap indicates shared patterns

重なりは共通のパターンを示す

PCAや多次元データの散布図で頻出する説明。

Outliers—possibly mislabeled samples or technical artifacts

外れ値の原因を推測する研究者らしいフレーズ

単なる外れ値指摘にとどまらず、解釈を加えると説得力が増す。

The scatter plot highlights…

散布図全体をまとめるときの便利な表現

要点を整理して聴衆に印象付けるのに役立つ。

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📜Script

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Describing a Scatter Plot of Sample Groups

A

This scatter plot compares two experimental groups based on gene expression profiles.

A

Each point represents a sample, plotted by two expression markers on the axes.

B

I see that the blue group clusters tightly, while the red group is more spread out.

A

Exactly. The compact cluster suggests more homogeneous expression within that group.

A

The red group shows higher variability, with several points extending outward.

B

So their expression patterns are more heterogeneous?

A

Correct. Notice also that the two groups overlap in the center.

A

That overlap indicates some shared expression patterns despite overall differences.

B

And what about these points far from both clusters?

A

Those are outliers—possibly mislabeled samples or technical artifacts.

A

So, the scatter plot highlights group clustering, variability in spread, overlap, and a few outliers.

Practice Questions

Question 1Speaker A

Conversation context (translation):

この散布図は遺伝子発現プロファイルに基づいて、2つの実験群を比較しています。

Question:

compares two experimental groups based on ___ profiles.

Self evaluation

Reveal the answer before submitting your evaluation.

Question 2Speaker A

Conversation context (translation):

その通りです。青い群のコンパクトなクラスターは、その群内での発現がより均一であることを示しています。

Question:

The compact cluster suggests more ___ expression.

Self evaluation

Reveal the answer before submitting your evaluation.

Question 3Speaker A

Conversation context (translation):

その重なりは、全体的な違いがあるにもかかわらず、一部に共通の発現パターンがあることを示しています。

Question:

That overlap indicates some ___ expression patterns.

Self evaluation

Reveal the answer before submitting your evaluation.

Question 4Speaker A

Conversation context (translation):

したがって、この散布図は群のまとまり、広がりの違い、重なり、そして外れ値を示しているのです。

Question:

highlights group clustering, variability in spread, ___, and a few outliers.

Self evaluation

Reveal the answer before submitting your evaluation.

💡 Effective Study Tips:

  • • Listen to the audio first and try to answer
  • • Use the translation to understand the context
  • • After checking the answer, listen again to review
  • • Practice using similar expressions in other situations