sisters and brothers. how strongly do physical characteristics of sisters and brothers correlate ? here are...

sisters and brothers. how strongly do physical characteristics of sisters and brothers correlate ? here are data on the heights (in inches) of 12 adult pairs

brothers 71 68 66 67 70 71 70 73 72 65 66 70

Sister 69 64 65 63 65 62 65 64 66 59 62 64

a) use your calculator or software to find the correlation and the equation of the least-squares line for predicting sister's height from brother's height. make a scatter-plot of the data , and add the regression line to your plot.

b)Damien is 70 inches tall . Predict the height of his sister Tonya . Based on the scatterplot and the correlation r , do you expect your prediction to be very accurate? why?

Expert Solution

orchestra answered 2 years ago

(5.37) How strongly do physical characteristics of sisters and brothers correlate? Here are data on the...

(5.37) How strongly do physical characteristics of sisters and brothers correlate? Here are data on the heights (in inches) of 11 adult pairs (Use a statistics technology and not the rounded regression equation to solve the problems): Brother 65.2 64.1 70.2 67.4 65.8 68.4 72.5 71.2 67.7 66.6 62.2 Sister 71.9 60.9 69.6 63 61.2 59.1 69.8 63.4 70.6 56 66.7 What is the value of the correlation rounded to at least three decimal places? r = ___ What is...

13. (5.37) How strongly do physical characteristics of sisters and brothers correlate? Here are data on...

13. (5.37) How strongly do physical characteristics of sisters and brothers correlate? Here are data on the heights (in inches) of 11 adult pairs (Use a statistics technology and not the rounded regression equation to solve the problems): Brother 67.6 67.1 61.7 63.3 65.3 70.7 71 69.4 70.6 63.8 71 Sister 65.4 62.3 63.7 65.2 64.7 61.9 64.2 66.2 63.7 62.4 61.5 What is the value of the correlation rounded to at least three decimal places? r = What is...

A research studied the correlation between physical characteristics of sisters and brothers. Here are data on...

A research studied the correlation between physical characteristics of sisters and brothers. Here are data on the heights (in inches) of 11 adult pairs. Brother 71 69 66 67 70 71 70 73 72 65 66 Sister 69 63 65 63 65 62 65 64 66 59 62 a) Find the correlation and the equation of the least squares line for predicting sister’s height from brother’s height. b) Carlos is 72 inches tall. Predict the height of his sister. c)...

The General Social Survey asked a sample of adults how many siblings (brothers and sisters) they...

The General Social Survey asked a sample of adults how many siblings (brothers and sisters) they had (X) and also how many children they had (Y). We show results for those who had no more than 4 children and no more than 4 siblings. Assume that the joint probability mass function is given in the following contingency table: y x 0 1 2 3 4 0 0.03 0.01 0.02 0.01 0.01 1 0.09 0.05 0.08 0.03 0.01 2 0.08 0.05...

Brothers and sisters: Thirty students in a first-grade class were asked how many siblings they have....

Brothers and sisters: Thirty students in a first-grade class were asked how many siblings they have. Following are the results. 1 1 2 1 2 3 7 1 1 5 1 1 3 0 1 1 1 2 5 0 0 1 2 2 4 2 2 3 3 4 a. Construct a frequency histogram. b. Construct a relative frequency histogram. c. Are the histograms skewed to the left, skewed to the right, or approximately symmetric?

Scenario 2: Salma and Salim are brothers and sisters staying at Nizwa. Salma is the youngest...

Scenario 2: Salma and Salim are brothers and sisters staying at Nizwa. Salma is the youngest one, openly expresses her emotions. She is also highly organized and likes doing things as per plan. She dislikes surprises and likes to prepare how best to plan. Her brother, Salim works in an IT company based at Muscat, where he stays with three other roommates in it. He has been unsuccessful in handling a crucial client handed out to him because of his...

Given the predicted relatedness of brothers, sisters, mothers, and fathers in a haplodiploid system, under Hamilton’s...

Given the predicted relatedness of brothers, sisters, mothers, and fathers in a haplodiploid system, under Hamilton’s rule… a. who should female worker bees favor when provisioning larvae? Is this in conflict with or not with what the queen should prefer? How and why? b. What if the queen mated with more than one male (rather than a single male)? How would this change the dynamics of the hive?

Correlate physical and chemical urinalysis results with microscopic observations and recognize discrepancies.

Compare the coefficient of relatedness between brothers and sisters in diploid organisms versus those organisms who...

Compare the coefficient of relatedness between brothers and sisters in diploid organisms versus those organisms who are haplodiploid. What differences would this lead to in terms of altruistic behaviors?

How do the experimental rates for the Diels-Alder reactions of cyclopentadiene and the different dienophiles correlate...

How do the experimental rates for the Diels-Alder reactions of cyclopentadiene and the different dienophiles correlate to the energies of the calculated LUMO? REFER TO TABLE BELOW! Please explain in detail. Diels-Alder dienophiles: Label Log (rate) E (LUMO) (eV) Acrylonitrile 0.00 2.85 1,1-dicyanoethene 4.64 1.09 Cis-1,2-dicyanoethylene 1.94 1.16 Trans-1,2-dicyanoethylene 1.89 1.40 Tricyanoethylene 5.66 -0.12 Tetracyanoethylene 7.61 -1.24

Question