解析 C_1(3x)^3(1/2)Coefficient =54Expands at least one term correctly.PIOther terms: (3x)^4+4C^2(3x)^2(1/2)^2+C_3(10π)(1/2)^3+(1/2)^4Condone use of coefficients only.Selects their x^3 term PIStates correct coefficient. ...
百度试题 结果1 题目 4. Find the coefficient of variation of a sample which has mean equal to 25 and standard deviation of 5. 相关知识点: 试题来源: 解析 4)C.V.=20 反馈 收藏
Find the coefficient ofx4in the expansion of(x/2−3/x2)10. View Solution Find the coefficient ofx6y3in the expansion of(x+2y)9. View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class...
x7 x−7 View Solution Find the coefficient ofx9in(1+3x+3x2+x3)15. View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium NCERT Solutions for Class 10 English Medium ...
X|0|1|2|3|3|5| Y|96|85|82|74|95|68|correlation coefficient:The correlation coefficient is used to measure the strength of the relationship between the two variables. Pearson correlation coefficient is the most commonly used in statistics....
百度试题 结果1 题目21. The coefficient of the x3 term in the expansion of (2x + a)3 is 3920Find the possible values of a. 相关知识点: 试题来源: 解析 80a^2x^3+⋯ 3920=80a2 a^2=49 a=t7 a=70ra=—7 反馈 收藏
a) Find the coefficient of x7in the binomial expansions of (3-x)10. b) Find, in simplified form, the fourth term in the binomial expansion of (4-x)−1/2. For what values of x is this expansion valid? Binomial Theorem A polynomial that has exactly two terms is called ...
Note the formula of the binomial theorem is, (a+b)n=∑i=0nnCrarbn−r Answer and Explanation:1 Given a binomial term, (x+y)7 We need to find the coefficient ofx5y2. Using the binomial... Learn more about this topic: What is the Binomial Theorem?
题目 2 i) Find the first three terms, in descending powers of x. in th eexpansinωf(x-2/x)^6 .[3](ii) Find the coefficient of .x4 in the expansion OF(1+x^2)(x-2/x)^6 .[2] 相关知识点: 试题来源: 解析(i) (x-2/x)^6=x^6-12x^4+60x^2(ii) *(1+x^2)→60-...
Method 1 – Find the Coefficient of Determination from the Correlation Coefficient 1.1 Using Arithmetic Formula Steps 1: Multiply the independent and dependent variables in a new column. Calculate theX^2value in another column. Determine theY^2value for all the employees. ...