In a certain high-risk group, the chances of a person having suffered a heart attack are...
In a certain high-risk group, the chances of a person having suffered a heart attack are 40%. If 4 people are chosen, find the probability that at least 1 will have had a heart attack
Homework Answers
We have given,
The probability that at least 1 will have had a heart attack
=1-0.1296
=0.8704
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In a certain high-risk group, the chances of a person having
suffered a heart attack are...
(please, show work) 6) In a high risk group, the chances of a person having suffered...
(please, show work)
6) In a high risk group, the chances of a person having suffered a heart attack are 53.24%. If nine people are chosen, find the following probabilities: a) P(X-3) b) P(X> 7) c) P(X < 6) d) P(at least 5) e) P(no more than 2)
4.3 Heart attack is one of the leading causes of death in many countries and cigarette...
4.3 Heart attack is one of the leading causes of death in many countries and cigarette smoking is the most preventable risk factor for heart attack. In a particular population, 20% of people suffered a heart attack, 16% of people are current smokers, and 12% of people had a heart attack while they were smokers. Let event A be a person who is a current smoker and event B be a person who had heart attack a) Construct a Venn...
4.3 Heart attack is one of the leading causes of death in many countries and cigarette...
4.3 Heart attack is one of the leading causes of death in many countries and cigarette smoking is the most preventable risk factor for heart attack. In a particular population, 20% of people suffered a heart attack, 16% ofpeople are current smokers, and 12% of people had a heart attack while they were smokers. Let event A be a person who is a current smoker and event B be a person who had heart attack. a) Construct a Venn diagram...
Bad gums may mean a bad heart. Researchers discovered that 77% of people who have suffered...
Bad gums may mean a bad heart. Researchers discovered that 77% of people who have suffered a heart attack had periodontal disease, an inflammation of the gums. Only 32% of healthy people have this disease. Suppose that in a certain community heart attacks are quite rare, occurring with only 14% probability. A. If someone has periodontal disease, what is the probability that he or she will have a heart attack? Probability = .4375 B. If 43% of the people in...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.3. A sample of 32 U.S. adults is chosen. Use the TI-84 Plus Calculator as needed. Round the answer to at least four decimal places. al. Part 1 of 5 Is it appropriate to use the normal approximation to find the probability that more than 44% of the people in the sample have...
3. A researcher collected data to study the effect of smoking on the risk of a heart attack. The variables were x - a categorical variable with the categories: (1) Present smoker (2) Past smoker (...
3. A researcher collected data to study the effect of smoking on the risk of a heart attack. The variables were x - a categorical variable with the categories: (1) Present smoker (2) Past smoker (smoked but quit) (3) Non-smoker Y - a binary variable defined by: Y 1 if the person had a heart attack Y-0 if the person didn't have a heart attack Since the X-variables are categorical, the researcher coded the X-variable by two dummy variables: X2...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.3. A sample of 32 U.S. adults is chosen. Use the TI-84 Plus Calculator as needed. Round the answer to at least four decimal places. ol. Part 1 of 5 Is it appropriate to use the normal approximation to find the probability that more than 44% of the people in the sample have...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.4. A sample of 37 U.S. adults i...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.4. A sample of 37 U.S. adults is chosen. Use the TI-84 Calculator as needed. Round the answer to four decimal places. Part 1 Is it appropriate to use the normal approximation to find the probability that more than 45% of the people in the sample have high blood pressure? It is and...
5.5.30. A drug is suspected of causing an elevated heart rate in a certain group of...
5.5.30. A drug is suspected of causing an elevated heart rate in a certain group of high-risk patients. Twenty patients from the group were given the drug. The changes in heart rates were found to be as follows 1 8 5 10 2 12 7 913 4 6 4 12 1 2- 10 2 8 Construct a 98% confidence interval for the mean change in heart rate. Assume that the population has a normal distribution. Interpret your answer
A group of people were asked if they had run a red light in the last...
A group of people were asked if they had run a red light in the
last year. 402 responded "yes", and 233 responded "no".
Find the probability that if a person is chosen at random, they
have run a red light in the last year.
Give your answer as a fraction or decimal accurate to at least 3
decimal places
Calculator Check Answer Question 5 A group of people were asked if they had run a red light in...
(please, show work)
6) In a high risk group, the chances of a person having suffered a heart attack are 53.24%. If nine people are chosen, find the following probabilities: a) P(X-3) b) P(X> 7) c) P(X < 6) d) P(at least 5) e) P(no more than 2)
4.3 Heart attack is one of the leading causes of death in many countries and cigarette smoking is the most preventable risk factor for heart attack. In a particular population, 20% of people suffered a heart attack, 16% of people are current smokers, and 12% of people had a heart attack while they were smokers. Let event A be a person who is a current smoker and event B be a person who had heart attack a) Construct a Venn...
4.3 Heart attack is one of the leading causes of death in many countries and cigarette smoking is the most preventable risk factor for heart attack. In a particular population, 20% of people suffered a heart attack, 16% ofpeople are current smokers, and 12% of people had a heart attack while they were smokers. Let event A be a person who is a current smoker and event B be a person who had heart attack. a) Construct a Venn diagram...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.3. A sample of 32 U.S. adults is chosen. Use the TI-84 Plus Calculator as needed. Round the answer to at least four decimal places. al. Part 1 of 5 Is it appropriate to use the normal approximation to find the probability that more than 44% of the people in the sample have...
3. A researcher collected data to study the effect of smoking on the risk of a heart attack. The variables were x - a categorical variable with the categories: (1) Present smoker (2) Past smoker (smoked but quit) (3) Non-smoker Y - a binary variable defined by: Y 1 if the person had a heart attack Y-0 if the person didn't have a heart attack Since the X-variables are categorical, the researcher coded the X-variable by two dummy variables: X2...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.3. A sample of 32 U.S. adults is chosen. Use the TI-84 Plus Calculator as needed. Round the answer to at least four decimal places. ol. Part 1 of 5 Is it appropriate to use the normal approximation to find the probability that more than 44% of the people in the sample have...
Blood pressure: High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is 0.4. A sample of 37 U.S. adults is chosen. Use the TI-84 Calculator as needed. Round the answer to four decimal places. Part 1 Is it appropriate to use the normal approximation to find the probability that more than 45% of the people in the sample have high blood pressure? It is and...
5.5.30. A drug is suspected of causing an elevated heart rate in a certain group of high-risk patients. Twenty patients from the group were given the drug. The changes in heart rates were found to be as follows 1 8 5 10 2 12 7 913 4 6 4 12 1 2- 10 2 8 Construct a 98% confidence interval for the mean change in heart rate. Assume that the population has a normal distribution. Interpret your answer
A group of people were asked if they had run a red light in the
last year. 402 responded "yes", and 233 responded "no".
Find the probability that if a person is chosen at random, they
have run a red light in the last year.
Give your answer as a fraction or decimal accurate to at least 3
decimal places
Calculator Check Answer Question 5 A group of people were asked if they had run a red light in...
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