Let `x_1, x_2, ...... ,x_n` be values taken by a variable `Xa n dy_1, y_2,.......... ,y_n` be t...
66 views · Published 21 September 2017 · 5:26 · Indexed 6 November 2026
Channel: Doubtnut · 2017 · Education
This is the Solution of Question From RD SHARMA book of CLASS 11 CHAPTER STATISTICS This Question is also available in R S AGGARWAL book of CLASS 11 You can Find Solution of All Question From RD SHARMA and R S AGGARWAL book from class 6-12 on our app DOUBTNUT for Free #rdsharmasolution #STATISTICS #rdsharmaclass11 #class11 #cbse #rdsharma #doubtnut ==== QUESTION TEXT ==== Let `x_1, x_2, ...... ,x_n` be values taken by a variable `Xa n dy_1, y_2,.......... ,y_n` be the values taken by a variable `Y` such that`y_i=a x_i+b ,i=1,2, ,ndot` Then, (a)`V a r(Y)=a^2V a r(X)` (b) `V a r(X)=a^2V a r(Y)` (c) `V a r(X)=V a r(X)+b` (d) none of these === DOWNLOAD DOUBTNUT TO ASK ANY MATH QUESTION === https://doubtnut.app.link/y0ROYP9AlP ==== SCORE 100% WITH DOUBTNUT ==== Doubtnut App has video solutions of ALL the NCERT questions from Class 6 to 12 (including IIT JEE). You can also ask any Math question and get a video solution for FREE from a library of more than 1 Lakh Math Videos ==== FOLLOW US ON FACEBOOK ==== Doubtnut PAGE: https://www.facebook.com/doubtnut DOUBTNUT IIT JEE Group: https://www.facebook.com/groups/251747588948573 ==== WATCH DAILY LIVE CLASSES ON YOUTUBE ==== 5:30 PM - Class 9 6:30 PM - Class 10 7:15 PM - Class 11 8:15 PM - Class 12 9:15 PM - Class 13 (DROPPERS)
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