4.22 Forabiologyproject,youmeasuretheweightingramsandthetaillengthinmillime- ters of a group of mice. The correlation is r = 0.7. If you...
Homework Answers
Solution:
The correlation remains the same.i.e,r=0.7.
So, the correct answer is option (b)0.7
In general, correlation between the variables does not depend on the units.
Add Answer to:
4.22
Forabiologyproject,youmeasuretheweightingramsandthetaillengthinmillime-
ters of a group of mice. The correlation is r = 0.7. If you...
(4 points) For each problem, select the best response. (a) For a biology project, you measure...
(4 points) For each problem, select the best response. (a) For a biology project, you measure the weight in grams and the tail length in millimeters of a group of mice. The correlation is r = 0.4. If you had measured tail length in centimeters instead of millimeters, what would be the correlation? (There are 10 millimeters in a centimeter.) A. 0.4 B. 0.4/10 = 0.04 C. (0.4)(10) = 4 D. None of the above. (b) A study found a...
11. You are a researcher studying mice. You hypothesize allele, brown coat; B-dominant allele, black coat)...
11. You are a researcher studying mice. You hypothesize allele, brown coat; B-dominant allele, black coat) and tail length (I recessive allele, shor allele, long tail) in mice are independently assorted. You know that both genes are autosomai gen. Youhve that genes that control coat color (b - recessive tail, L-dominant colonies of true- Obreeding access to two with short tails and brown coats. You cross the females and males described above and then you cross the F1s. Your aggregated...
3. A cancer laboratory is estimating the rate of tumorigenesis in two strains of mice, A...
3. A cancer laboratory is estimating the rate of tumorigenesis in two strains of mice, A and B. They have tumor counts for 10 mice in strain A and 13 mice in strain B. Type A mice have been well studied, and information from other laboratories suggests that type A mice have tumor counts that are approximately Poisson-distributed with mean 12. Tumor count rates for type B mice are unknown, but type B mice are related to type A mice....
Fused quartz possesses an exceptionally low coefficient of linear expansion, 5.50 × 10-7 (C°)–1. Imagine you...
Fused quartz possesses an exceptionally low coefficient of
linear expansion, 5.50 × 10-7 (C°)–1. Imagine you had a bar of
fused quartz of length 3.45 m at 20.0°C. By how much, in
millimeters, would the bar expand if you heated it to
237°C?
Fused quartz possesses an exceptionally low coefficient of linear expansion, 5.50 x 10% (Co)-Imagine you had a bar of fused quartz flength 3.45 m at 20.0℃. By how much, in millimeters, would the bar expand if you...
Image that a researcher examined how the people’s weights affect their salaries. She found that the...
Image that a researcher examined how the people’s weights affect their salaries. She found that the correlation between weights (measured in lbs.) and salary range (measured in dollars) was .10. Had she measured the weight in kg instead, what would the correlation have been? a. Above 0.10 b. Below 0.10 c. 0.10
If a researcher obtained an r of -0.85, what could you say about this correlation? -...
If a researcher obtained an r of -0.85, what could you say about this correlation? - This is a strong negative correlation. O This is a strong positive correlation. O This is a weak negative correlation. O This is a weak positive correlation. Question 4 1 pts If a researcher wanted to see if cumulative GPA predicts GRE scores, which of the two variables would be the predictor variable? The number of participants None of the other answers O GRE...
What is the correlation coefficient when the point (10.2) is excluded? r = _ (round to...
What is the correlation coefficient when the point (10.2) is
excluded?
r = _ (round to three decimal places as needed.)
% 10.2.11 Question Help 104• Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient r and determine whether there is a linear correlation. c. Remove the point with coordinates (1,10) and find...
How do you get this answer? Portfolio Weight 0.25 Correlation w Market Portfolio 0.7 0.6 0.5...
How do you get this
answer?
Portfolio Weight 0.25 Correlation w Market Portfolio 0.7 0.6 0.5 Volatility 14% 18% 15% Firm Taggart Transcontinental Wyatt Oi 0.35 0.40 Rearden Metal The volatility of the market portfolio is 10%, the expected return on the market is 12%, and the risk-free rate of interest is 4% The Sharpe Ratio for the market portfolio is closest to O A. 0.40 O B. 0.56 O C. 0.48 D. 0.80
. point) Caleulate the correlation coefficient r. This table is intended to help you set up...
. point) Caleulate the correlation coefficient r. This table is intended to help you set up the for the eorrelation coefficient by hand. If you'd like to use your T1-84 instead go for it! Column B The y deviations from the mean: O1-y) Multiply the values in the Columns A and B. The product of the deviations. Column A: the mean: (XI-X) 3.5-7.65-4.15 62-7.65 =-1.45 9.5-7.65-1.85 11.4-7.65 3.75 The x deviations from | Sum the above rows for Now to...
Fused quartz possesses an exceptionally low coefficient of linear expansion, 5.50 × 10-7 (C°)–1. Imagine you...
Fused quartz possesses an exceptionally low coefficient of linear expansion, 5.50 × 10-7 (C°)–1. Imagine you had a bar of fused quartz of length 2.93 m at 20.0°C. By how much, in millimeters, would the bar expand if you heated it to 223°C?
(4 points) For each problem, select the best response. (a) For a biology project, you measure the weight in grams and the tail length in millimeters of a group of mice. The correlation is r = 0.4. If you had measured tail length in centimeters instead of millimeters, what would be the correlation? (There are 10 millimeters in a centimeter.) A. 0.4 B. 0.4/10 = 0.04 C. (0.4)(10) = 4 D. None of the above. (b) A study found a...
11. You are a researcher studying mice. You hypothesize allele, brown coat; B-dominant allele, black coat) and tail length (I recessive allele, shor allele, long tail) in mice are independently assorted. You know that both genes are autosomai gen. Youhve that genes that control coat color (b - recessive tail, L-dominant colonies of true- Obreeding access to two with short tails and brown coats. You cross the females and males described above and then you cross the F1s. Your aggregated...
3. A cancer laboratory is estimating the rate of tumorigenesis in two strains of mice, A and B. They have tumor counts for 10 mice in strain A and 13 mice in strain B. Type A mice have been well studied, and information from other laboratories suggests that type A mice have tumor counts that are approximately Poisson-distributed with mean 12. Tumor count rates for type B mice are unknown, but type B mice are related to type A mice....
Fused quartz possesses an exceptionally low coefficient of
linear expansion, 5.50 × 10-7 (C°)–1. Imagine you had a bar of
fused quartz of length 3.45 m at 20.0°C. By how much, in
millimeters, would the bar expand if you heated it to
237°C?
Fused quartz possesses an exceptionally low coefficient of linear expansion, 5.50 x 10% (Co)-Imagine you had a bar of fused quartz flength 3.45 m at 20.0℃. By how much, in millimeters, would the bar expand if you...
If a researcher obtained an r of -0.85, what could you say about this correlation? - This is a strong negative correlation. O This is a strong positive correlation. O This is a weak negative correlation. O This is a weak positive correlation. Question 4 1 pts If a researcher wanted to see if cumulative GPA predicts GRE scores, which of the two variables would be the predictor variable? The number of participants None of the other answers O GRE...
What is the correlation coefficient when the point (10.2) is
excluded?
r = _ (round to three decimal places as needed.)
% 10.2.11 Question Help 104• Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears to be a strong correlation between x and y. b. Find the value of the correlation coefficient r and determine whether there is a linear correlation. c. Remove the point with coordinates (1,10) and find...
How do you get this
answer?
Portfolio Weight 0.25 Correlation w Market Portfolio 0.7 0.6 0.5 Volatility 14% 18% 15% Firm Taggart Transcontinental Wyatt Oi 0.35 0.40 Rearden Metal The volatility of the market portfolio is 10%, the expected return on the market is 12%, and the risk-free rate of interest is 4% The Sharpe Ratio for the market portfolio is closest to O A. 0.40 O B. 0.56 O C. 0.48 D. 0.80
. point) Caleulate the correlation coefficient r. This table is intended to help you set up the for the eorrelation coefficient by hand. If you'd like to use your T1-84 instead go for it! Column B The y deviations from the mean: O1-y) Multiply the values in the Columns A and B. The product of the deviations. Column A: the mean: (XI-X) 3.5-7.65-4.15 62-7.65 =-1.45 9.5-7.65-1.85 11.4-7.65 3.75 The x deviations from | Sum the above rows for Now to...
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