2枚目は解説の一部なのですが、なぜこの式で求めるのか分かりません😭教えてください🙏🏻

変量xの9個のデータ .・, xg について考える。 この9個のデータの平 均値はm,標準偏差はs であり, sは0ではないとする。 (1) a, b を実数とし, α > 0 とする。変量xの9個のデータと,変量yの9個の データ P1, P2, '', y との間に yk = ax+bk=1,2,･･･,9)の関係があ るとする。変量yの9個のデータの平均値は 0,標準偏差は1であるとき, bをm,sを用いて表せ。 == , a,

この英文はなんでwereなのですか？

I wish she were my wife. 彼女がほくの妻だったらいいのに。

I washed my nephew ( ) happily on the stage. ( )に入るのって、dance か　dancingのどちらになりますか？ 第5文型の補語が原形不定詞か分詞かはどのように判断すればよいのですか？ 調べると、~するだ... 続きを読む

現在完了形にするときと、現在完了進行形にするときの見分け方教えてください🙇🏻‍♀️

4 Change the verbs in the brackets into correct form. 1) My mother have cleaned morning. (clean) 2) Emma 4 the kitchen since this 1) ►

至急 並び替えを教えてください

I'll do the (1. best . can . I . limits of . the h. within) my ability.

正しいものを教えて欲しいです🙏

I have a bad habit of leaving out doing my homework until the very last minute. I have a bad habit of putting off doing my homework until the very last minute. I have a bad habit of staying up doing my homework until the very last minute. I I have a bad habit of getting in doing my homework until the very last minute.

解説お願いしますm(_ _)m

Never I dreamed that I would become a starting player in my first year. B D A NO ERROR E

解説お願いしますm(_ _)m

A B At my college, almost of the students have gone abroad at least once. NO ERROR D E

3つ誤りがある英文を探す問題です。4 と 7 とあと一つがわかりません😭

1. 2. 3. 4. 5. 6. 7. 8. 9. I am sure that he will be able to solve the problem by himself. If I were you, I would tell the truth to your teacher right now. My father told me that the sun rises in the east every morning. It is one of the most interesting book I have ever read in my life. She has been lived in this small town for more than twenty years. This computer is much more expensive than the one I bought last year. I am looking forward to see my friends at the school festival next week. The song which was sung by the singer became very popular all over Japan. You should finish your homework before you go to play soccer in the park. 10. He is too busy to help us with the heavy boxes in the classroom.

3つ誤りがある英文を探す問題です。3と5とあと一つがわかりません😭

1. 2. 3. 4. 5. 6. 7. 8. 9. I think that it is necessary for students to get enough sleep every night. The cake which was made by my sister tasted very sweet and delicious. My father told me that he will take us to the amusement park next week. She has been practicing the piano for three hours to prepare for the concert. If it will rain tomorrow, the outdoor baseball game will be canceled. We are looking forward to seeing you at the party held at the hotel. The boy who lives next to my house has a dog called Pochi. I don't know how long it takes to go to the station on foot. This mountain is one of the most beautiful place in our country. 10. You should be careful when you cross the street because there is much traffic.