Find the sample correlation coefficient for the following data:$$ \sum x = 1 2 2 \sum x ^ { 2 } = 2 0 9 6 , \sum y = 1 4 0 , \sum y ^ { 2 } = 2 5 7 8 , $$$$ \sum x y = 2 2 2 5 n = 8 $$ 相关知识点: 试题来源: 解析 -0.518 反馈 收藏
Find th e correlation coefficient, r, of th e dat a described below.To plan its upcoming programming, a local television station wanted to study the televisinwai ching habits of peopl e in th e area. Station executives called a random sampl e of peopl e in their broadcast ar e a and...
To find the correlation coefficient r(x,y), we will use the formula: r(x,y)=n∑xy−∑x∑y√(n∑x2−(∑x)2)(n∑y2−(∑y)2) Given values:- n=10- ∑x=60- ∑y=60- ∑x2=400- ∑y2=580- ∑xy=305 Step 1: Calculate the numeratorThe numerator of the formula is: n...
Find the correlation coefficient r(x,y) if : n = 10 ,sumx=60, sumy=60 , sumx^2=400 ,sumy^2=580,sumxy=305.
How do I find the correlation coefficient (the goodness) between the polynomial fitted and my points? 댓글 수: 0 댓글을 달려면 로그인하십시오. 이 질문에 답변하려면 로그인하십시오....
【题目】Find the correlation coefficient, r, of the dat a described below.To plan its upcoming programming, a local television station wanted to study the television watching habits of people in the area. Station executives called a random sample of people in their broadcast are a and asked ...
The linear correlationcoefficientmeasures the relationship between the paired values in a sample. ( r=(n(( ∑ _(^(xy)-( ∑ _(^(x( ∑ _(^y/(√(n(( ∑ _(^(x^2)-((( ∑ _(^(x))^2)⋅ √(n(( ∑ _(^(y^2)-((( ∑ _(^()y))^2))) Sum up the values of the fi...
After that, I want to extract those rows inBwhich had the highest correlation coefficient (>=0.8) with row 1 inAinto another matrix calledC. Any idea would be appreciated! Thank you. 댓글 수: 0 댓글을 달려면 로그인하십시오. ...
A correlation coefficient, r, is a number between -1 and 1 to measure the relationship between two variables. The sign of r (positive or negative) indicates the direction. If it is positive, both variables increase or decrease together. If it is negative, one variable increases while another...
An r of 0 indicates that there is no relationship between the two variables. An r of +1.0 describes a positive correlation between two variables, whereas an r of -1.0 describes a negative correlation. This is the sample dataset. To know the relationship between the monthly number of free co...