例題も練習問題もデータの値を2倍した時の分散を求めるのに、どちらも2の二乗が使われているのはなぜですか？

(A半)率3の合 変量の変換 第5章 データの分析 例題 12 次のデータは,ある生徒5人の数学の試験の得点を記録したものである。 7, 3, 8,2, 10 (点) (1) このデータの平均値と分散を求めよ。 (2) 5人全員の得点それぞれに 10を加えたデータの平均値と分散を求めよ。 (3) 5人全員の得点をそれぞれ2倍にしたデータの平均値と分散を求めよ。 【類仁愛大) 変量の変換を用いて,見通しよく計算する 考え方 変量x,yについて,y=ax+b (a, bは定数)であるとき, x, yのデータの平均値をx, y, 分散を s, s,, 標準偏差を S, s, とすると →(2)では a=1, b=10, (3) では a=2, 6=0 と考えて, (1) の結果を利用する。 ソ=ax+6, s,"=a's., s,=|a|s. ポイント (解答 1 定義から求める 1 -(7+3+8+2+10) = 30 -=6 (点) 圏 5 (1) 平均値は (7-6)°+(3-6)+(8-6)*+(2-6)°+(10-6)")= =9.2 匿 分散は 46 5 2 (1)の結果を利用 →(2) 5人全員の得点それぞれに 10を加えたときの平均値は 6+10=16(点) 器 分散は,(1)と同じで 9.2 容 (1)の結果を利用 → (3) 5人全員の得点をそれぞれ2倍したときの平均値は 2?×9.2=36.8 圏 2×6=12(点) 闇 月 分散は 練習 10個の値からなる次のデータについて考える。 12 10, 6, 9, 4, 7, 2, 3, 5, 1, 3 (1) このデータの平均値,分散, 標準偏差を求めよ。 (2) このデータの値それぞれに3を加えたデータの平均値, 分散, 標準偏差を求めよ。 (3) このデータの値をそれぞれ2倍したデータの平均値, 分散, 標準偏差を求めよ。 【類京都学園大) Aからまで最

青のマーカー引いてるとこなんて訳しますか？？

she could see was the one behind her. Suddenly, she was nearly blinded as the car behind her flashed its headlights in her mirror. She was surprised. Slowly, the car behind moved up close and flashed its lights again. o This continued all the way home. By the time she finally did reach home, she was terrified! She was out of her car almost before it stopped. She U L v

回答わかる方いますか?

16 次の(A), (B)の問いに答えなさい。 (A 次の英文を読んで, 文意が通じるように, 2回~16時に入れるのに最も適切な語(旬) を0~ から1つずつ選び, 番号で答えなさい。 In 2019, the Rugby World Cup was held in Japan. Rugby wasn't very popular among Japanese people until just a few years ago. In the *previous World Cup in 2015, Japan won a game against South Africa in a dramatic *upset victory. And in this World Cup, Japan reached the final eight. The Japanese national team made history and has 0 taken 5@ brought Do you know who started Japan's *bid to host the Rugby World Cup? There was a man who had a great passion for rugby. He was a * diplomat named Katsuhiko Oku, In 2003, he was suddenly attacked and killed by *terrorists in *Iraq, He was 290 engaged O prepared He started playing rugby at a public high school in Hyogo. He also showeda great talent for rugby at Waseda University. At that time, he had a dream to be a diplomat and work internationally in the future. After deep *consideration, he decided to 30O continue to However, he *encountered rugby again at Oxford University, and he tried hard to 15 develop his skills there. He became the first Japanese player of the Oxford rugby team. After that, he kept his love for rugby in his heart and *devoted himself to Japanese rugby while he worked on the 31) | 0 social Six years after his death, it was decided that the Rugby World Cup would be held in Japan. O given rugby into the hearts and minds of Japanese people. O satisfied in *reconstruction support activities for Iraq. 10 @ keep off O give up rugby then. O necessary O international stage. [注) previous (前の) terrorist(テロリスト) consideration(熟慮) upset(番狂わせ) Iraq(イラク) encounter . (……に出会う) bid (宣言 reconstf uction (復興) diplomat (外交官) devote oneself to (…に身を捧げる)

下の写真の問題を全て解説お願いします。

文法 3 2 (9)については,下の①~③のうちから英文として正しいものを1つ選べ。 game ) the video to play (1) Have you given up( 0 play 基本 2 played ③ playing人 基本 )a lot of free time, I want to study Chinese. ② To have 4) Had 3 Having 基本 基本 ad ) Have 3on birow 日 A (3) You must not leave the engine( ) to run ③ running 標準 run ran ) to our boss.oalegww airu veud 4 (4) We got these facts( 標準 2 known ③ knowing to know know Toor ru (5) I have heard the song 応用 in English. 1 sing ③ singing 4 sung sang (6) Iwill never forget ) the Alps when I first went to Europe. 応用 9V6 1 to see 3 to have seen ④ seeing see my work, I could finally go home. blon To do 応用 2 Being done Having done 4 Had done 1 h ) enough time, I will be able to clean my room. 応用 0 Giving 2 To give 3) Given ④ Having given Detew bsd (9 She kindly helped me finish my homework. She kindly helped my finishing my homework. She kindly helped for me finishing my homework. 標準 (2 0O md ai の の

答えがエになる理由がわかりません。時を表す語と一緒に完了形は使えないはずですが…

ウ has (3) “What happened ?" «We ( T ア waited ウ would have been waiting ) for an hour when the bus finally came." イ would have waitedirhnoe 10 ェ had been waiting (京都女子大) *11 1-nd ro1 the book when I(

あってはいたんですけど、4と迷いました。仕事が終わらせられたのでのようなかんじで訳せるかな？と思ったんですがなぜ3になるのか教えてほしいです。

)my work, I could finally go home. 2 Being done 本用 の Had done ③ Having done 過去っ売味を To do Trill he ahle to deah my room.

リードB持っている方不定詞のステップ1の解答送っていただけませんか？ 学校で解答冊子持ってくるの忘れてしまって、。お願いいたします。

不定詞 STEP O 1(to-不定詞の名詞的用法·形容詞的用法·副詞的用法》 次の各文の to-不定詞が,名詞的用法 ならア,形容詞的用法ならイ,副詞的用法ならウと答えなさい。 (1) It is a pity to be indoors on a day like this. (2) Children go to school to learn things. (3) Iwant to buy a book oto read on the journey. 09 (4) Don't you think it wrong to tella lie to your friend? J0 J ( (5) His son grew up to be a very sociable man. (6) She had the courage to say no. (7) He must be a fool to act in that way. (8) There was no time for her to call on her aunt. 2(to-不定詞の名詞的用法〉 次の各文の to-不定詞の働きが,主語ならア, 目的語ならイ, 補語 ならウと答えなさい。 ena JD 9ge to forget all. (2) It is hard to criticize the people you like. To know all is Jの ( (3) I forgot to mail your letter. (4) Do you think it strange for me to live by myself? JpO pe 3(to-不定詞の形容詞的用法〉次の各文の下線部を to-不定詞を用いた形にして,全文を書きか えなさい。 (1) This is the best way of curing a cold. E 0~ ( ゆ) (2) He was the last person who left the office. DIg 2or (3) He has no friends who will support him. 1ore stgin (4) This apron has no pocket in which I can put things. 4(to-不定詞の副詞的用法〉 次の各文を[ ]内の指示に従って書きかえなさい。 (1) Her coach was disappointed when he heard of her failure. (下線部を to-不定詞を用いて) [only to ~ (2) We hurried to the house but found that it was empty. (21出孝 to ~を用いて) (3) This bag is so small that it cannot hold all these things. [too (4) This book is so easy that a six-year-old child can read it. [ enough to ~ を用いて) 語 注 no pocket in which I can put things 私がものを入れられるポケット(がない) 19

至急、教えて頂きたいです！ 全ての問題教えてください😖🙏💦

11次の英文を読んで、あとの問いに答えなさい。 Bamboos belong to the grass family. Tall bamboos in a forest look like trees, but they are actually hollow stems. In the old Japanese story Taketori Monogatari, an old bamboo cutter finds a pretty young child in such a bamboo stem. Bamboos grow amazingly quickly. [ A] Ifyou want to grow bamb0os, you first need to make a small deep hole in the ground. [ B ] At the same time, under the ground, a new stem grows out of the planted bamboo, and moves along quickly horizontally. [C ] In spring and early summer, many bamboo shoots come out of the stem under the ground. [ D1 Those bamboo shoots also grow upward fast and become as high as about 20 meters in a few months. In this way, the number of bamboos becomes very large in a few years. All bamboos in a forest are usually clones of the first one, and they are connected to each other by the stems under the ground. So, when the time comes, all bamboos in a forest start to flower at the same time, make their seeds, and finally die out. This is the natural process for grasses. However, many of us won't have a chance to see any bamboo flowers. That is because many kinds of bamboos flower only once every 60 years or more. 1. 次の問題に英語で答えなさい。 (1) Why do all bamboos in a forest start to flower at the same time? e (Because で始めて) (2) Why will many of us NOT see any bamboo flowers? (Because で始めて) 2. 下の英文を入れる最適な場所はどこか、A~Dの記号で答えなさい。 Tpou When you plant a young bamboo there, it usually grows upward fast. Bryeqebact n or bnos scort ( )odw 2cgica

この問題を教えてください お願いします

(amoiniqo Read It Through 0olot ai bn0998 9dT obruioua 9wane e IngaueGDe paacg ou o doe A Answer true or false. hamabot 0 a by 1. Japanese soccer schools have not started training in logical thinking yet. 9dT agn 2. A Q&A drill improves soccer players' logical thinking skills. 3. Through a picture description drill, players learn to judge a situation from evidence. blindiy oldieeog B Fill in the blanks. 1) Q&A drill: Players become able to( V ake jpdgm di dgyot ) their game and express themselves ( bommi 2) Picture description drill: Players learn how to ( ) and )a situation based on evidence. Evidence 1 -→The player is wearing( ) and( Evidence 2 →The ball looks ( →The player in the picture is ( ) soccer.

仮定法の問題です 英語が苦手すぎて最初の(1)しか分かりませんでした 量が多いですが教えていただきたいです汗

EXERCISES 各文の_に, ( )内の語句を適当な形に直して入れなさい。 here, they would be surprised at the news. (be) a new tennis racket. (may buy) 1) If they 2) If I had more money, I 3) If you a computer, you could finish this job in a day. (use) Henry more often if I lived in Tokyo. (can meet) it with you.(will sing) 4) I 5) If I knew that song, I 各文のに,( )内の語句を適当な形に直して入れなさい。 the first train. (can catch) 1) If I had run, I (be) fine last Sunday, we would have gone camping. your story. (will believe) 2) If the weather 3) If you had shown her this picture, she 4) If I yesterday, I would have failed the exam. (not study) 5) If Steve my advice then, he might be well now. (take) 3 日本文の意味に合うように( )内に適語を入れなさい。 1)ここにもう少し長くいられればいいのに. I wish I( ) here longer. 2)あのときあなたとお話しする時間がもっとあればよかったのですが. I wish I( ) more time to talk with you then. 3) 昨日そんなにたくさんお金を使わなければよかった。 I wish I( ) so much money yesterday. a. の状況に合うように, b. の( )内に適語を入れて仮定法の文を完成させなさい。 1) a. I don't have enough time, so I can't visit Kiyomizu Temple. ) enough time, I ( b. If I ( ) visit Kiyomizu Temple. 2) a. We practiced hard, so we won the finals. b. If we( ) practiced hard, we wouldn't ( ) the finals. 3) a. I'm sorry I didn't buy a ticket for the concert. )a ticket for the concert. 日本文の意味に合うように( )内に適語を入れなさい。 1)もし今晩忙しくなければ, あなたを手伝うことができるのに. If I( ) busy this evening, I ( ) help you. 2)もしあのとき地図を持っていたら,道に迷わなかったのに. If we had had a map then, we ( ) our way. 3)もしもっと早くこの薬を飲んでいたら, 君は今ごろ元気だろうに. If you( this medicine earlier, you ( ) fine now. 4) グランドキャニオンの写真を撮っておけばよかったのですが。 I( ) pictures of the Grand Canyon.