Suppose that you are in a class of 31 students and it is assumed that approximately 10% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are lefthanded
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Statistics
Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are lefthanded. (b) Compute the probability ... 
Stats
Suppose that you are in a class of 31 students and it is assumed that approximately 10% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are lefthanded. (b) Compute the probability ... 
STATISTICS
Suppose that you are in a class of 29 students and it is assumed that approximately 16% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are lefthanded. (b) Compute the probability ... 
statistics
Suppose that you are in a class of 28 students and it is assumed that approximately 8% of the population is lefthanded. (Give your answers correct to three decimal place. Compute the probability that exactly five students are lefthanded 
Math check answer
Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are lefthanded. Answer .161 (b) Compute the ... 
math check
Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are lefthanded. Incorrect: 9.936 (b) Compute ... 
Statistics help
Suppose that you are in a class of 32 students and it is assumed that approximately 9% of the population is lefthanded. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are lefthanded. Incorrect: Your answer is ... 
math check
Posted by Nora 56 on Sunday, June 2, 2013 at 7:32pm. Sorry to repost but no one answered after I posted on the 2nd,please help, Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is lefthanded. (Give your answers correct ... 
Math
Can someone answer a question similar to a and b so I can use as an example. Consider the following binomial random variables. (a) The number of tails seen in 47 tosses of a quarter. (i) Find the mean. (Give your answer correct to one decimal place.) (ii) Find the standard ... 
Statistics
In a certain class 27% of the students are lefthanded. suppose that a random sample of 53 students is selected. Find the mean number of lefthanded students in the class. Round your answer to the nearest integer. 
Statistics
In a certain class 27% of the students are lefthanded. suppose that a random sample of 53 students is selected. Find the mean number of lefthanded students in the class. Round your answer to the nearest integer. Pls help! 
Math
Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained. (b) Find the proportion of male college students whose height is greater than 69 ... 
math check
Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained. (b) Find the proportion of male college students whose height is greater than 69 ... 
Math Help
Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained. (c) Find the standard error of this sampling distribution. (Give your answer correct ... 
math help
Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained (e) Find P(x > 70). (Give your answer correct to four decimal places.) (f) Find P(x... 
Math
Left hand! right hand Female___!________ Male_____!_______ Total18 ! 122 The incomplete table above summarizes the number of lefthanded students and righthanded students by gender for the eighth grade students at Keisel Middle School. There are 5 times as many righthanded ... 
5th grade math
In the fourth grade class at Baker Elementary, 9 students are lefthanded. The fifth grade has 7 lefthanded students and the sixth grade has 6. The number of students in the fourth grade is 3 times the number of lefthanded students in the class. The sixth grade has 3 more ... 
Math check
A random sample of size 26 is to be selected from a population that has a mean ì = 46 and a standard deviation ó of 15. (a) This sample of 26 has a mean value of x, which belongs to a sampling distribution. Find the shape of this sampling distribution. skewed right ... 
math
Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (a) Construct a scatter diagram of the given bivariate data. (Do this on paper. Your instructor may ask you to turn in this work.) (b) Calculate the covariance. (Give ... 
statistics
Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (b) Calculate the covariance. (Give your answer correct to two decimal places.) (c) Calculate sx and sy. (Give your answers correct to three decimal places.) sx = sy... 
math help
Can some one help me with this one??? Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (a) Construct a scatter diagram of the given bivariate data. (Do this on paper. Your instructor may ask you to turn in this work... 
math
in a class there are 17 right handed students and 3 left handed students, what fraction of the class is lefthanded? 
statistics check
Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (b) Calculate the covariance. (Give your answer correct to two decimal places.) 5.35 was my answer . (c) Calculate sx and sy. (Give your answers correct to three ... 
Math statistics
Ten percent of Americans adults are lefthanded. A statistics class has 50 students in attendance. Find the standard deviation for the number of lefthanded students in such classes of 50 students 
Statistics 1 plaese give answers to below question
Suppose a simple random sample of size n=150 is obtained from a population whose size is N=20,000 and whose population proportion with a specified characteristic is p=0.8. Please answer questions (1) through (5) below. (1) Describe the sampling distribution of p^ (choose the ... 
Math
For every left handed person, there are 4 right handed persons. If there are 30 students in the class predict the number of students who are right handed. 
statistics
A sample of 65 nightschool students' ages is obtained in order to estimate the mean age of nightschool students. x bar = 25.2 years. The population variance is 28. (a) Give a point estimate for ì. (Give your answer correct to one decimal place.) Correct: Your answer is ... 
math check
A machine produces parts with lengths that are normally distributed with ó = 0.52. A sample of 16 parts has a mean length of 75.07. (a) Give a point estimate for ì. (Give your answer correct to two decimal places.) 75.07. (b) Find the 99% confidence maximum error of estimate... 
Math help
Could someone work one of these out so I can use as example. A sample of 59 nightschool students' ages is obtained in order to estimate the mean age of nightschool students. x = 25 years. The population variance is 20. (a) Give a point estimate for ì. (Give your answer ... 
college statistic
A sample of 51 nightschool students' ages is obtained in order to estimate the mean age of nightschool students. x = 26 years. The population variance is 19. (a) Give a point estimate for μ. (Give your answer correct to one decimal place.) (b) Find the 95% confidence ... 
math
Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (a) Construct a scatter diagram of the given bivariate data. (Do this on paper. Your instructor may ask you to turn in this work.) (b) Calculate the covariance. (Give ... 
Statistics
A study shows that 10% of americans are lefthanded. Find the probability that at most one student is left handed in a class of 20 students. 
calc 2
A computer takes 2 seconds to compute a particular definite integral accurate to 4 decimal places. Approximately how long does it take the computer to get 12 decimal places of accuracy using each of the LEFT, MID, and SIMP rules? Round your answers to one decimal place. (a) ... 
matj
in a class there are 17 right handed students and 3 left handed students, what percent of the class is right handed? 
math
Consider the following set of data. (18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) (b) Calculate the standard deviation of the six xvalues and the standard ... 
statistics
Consider the following set of data. (18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) . (b) Calculate the standard deviation of the six xvalues and the standard ... 
statistic
suppose we wish to construct a confidence interval for a population proportion p. if we sample without replacement from a relatively small population of size N, the margin or error E is modified to include the finite population correction factor as follows: E=Za/2 pq/n Nn/N1... 
math
for every lefthanded person there are about 4 righthanded persons. If there are 30 studentsa in a class write and solve a proportion to predict the number of students who are righthanded. 
math
Consider the following set of data. (18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) Incorrect: Your answer is incorrect. . (b) Calculate the standard deviation of ... 
algebra 1 sequences
Year 2003 2004 2005 2006 Populatation 22.12 22.49 22.86 23.41 A. divide the population for each year by the population in the preceeding year. Round to the two decimal places and show the Texas population increase that is approximately geometric. 1.01 B. Write the general term... 
Algebra sequences
Year 2003 2004 2005 2006 Populatation 22.12 22.49 22.86 23.41 A. divide the population for each year by the population in the preceeding year. Round to the two decimal places and show the Texas population increase that is approximately geometric. 1.01 B. Write the general term... 
Math check
The middle 69% of a normally distributed population lies between what two standard scores? (Give your answers correct to two decimal places.)0.31 and 1.69 was my answers and they are wrong????. . 
Math
What is the difference between "Give your answer correct to two decimal places." and "Round your answers to two decimal places." ?? Are they the same thing or do the answers differ? 
statistics
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ƒÏ = 0 in favor of ƒÏ ‚ 0 at ƒ¿ = .05? (Give your ... 
stats
A preliminary survey shows that 35% of college students smoke. In a class of 42 students, what is the probability that more than half the students smoke? Use Appendix B.1 for the zvalues. (Round the zvalue to 2 decimal places and the final answer to 4 decimal places.) 
statistics question
Thank you in advance for anyone able to help me with this... In a sample of 67 randomly selected students, 27 favored the amount being budgeted for next year's intramural and interscholastic sports. Construct a 98% confidence interval for the proportion of all students who ... 
Math
In Mrs. Wallace's science class one half of the students are boys of the boys 1/8 or lefthanded what fraction of the students and Mrs. Wallace's science class are left handed 
math
the probability that an imdividual is lefthanded is 0.30 in a class of 25 students, what is the the mean and standard deviation of the number of lefthanders in the class 
Stats
Suppose the following data are selected randomly from a population of normally distributed values. 42 51 43 48 41 57 54 39 45 48 45 39 46 Construct a 95% confidence interval to estimate the population mean. Round the intermediate values to 2 decimal places. Round your answers ... 
statistics
The state bridge design engineer has devised a plan to repair North Carolina's 4420 bridges that are currently listed as being in either poor or fair condition. The state has a total of 13,168 bridges. Before the governor will include the cost of this plan in his budget, he ... 
STATISTICS(NEED HELP PLEASE?)
Consider the following set of data. (25, 6), (25, 51), (62, 34), (84, 15), (112, 57), (122, 14) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) 40.17 (b) Calculate the standard deviation of the six xvalues and the standard ... 
statistics
Assume that 90% of the general population is righthanded. Suppose that 100 students are randomly selected. what is the probability that 84% or more is right handed 
Stats Math 3
Suppose a simple random sample of size n=150 is obtained from a population whose size is N=20,000 and whose population proportion with a specified characteristic is p=0.8. Please answer questions (1) through (5) below. (1) Describe the sampling distribution of p^ (choose the ... 
statistics
in a sample of 1000 people <525 men and 475 women>,113 are left handed<63 men and 50 women>.the results of the sample are shown in the table.find the probability that a randomly selected person is a left handed,given that she is a woman.<round to 3 decimal places 
math
a university surveys a randomly selected group of 250 freshmen. In the group, 20 of the freshmen were lefthanded. If there are 8,000 in the freshman class, what is the best prediction fo the number of lefthanded freshmen students? THANK YOU! 
Math/Statistics
Three hundred twelve viewers were asked if they were satisfied with TV coverage of a recent disaster. Gender Female Male Satisfied 90 53 Not Satisfied 124 45 (a) Find P(satisfied). (Give your answer correct to two decimal places.) (b) Find P(satisfied  female). (Give your ... 
Math
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ƒÏ = 0 in favor of ƒÏ ‚ 0 at ƒ¿ = .05? (Give your ... 
7th PreAlgebra Word Problem
Approximately oneseventh of the people in the United States are lefthanded. The population of the United States is about 300 million. Write and solve an equation to estimate howmany people in the United States are left handed. 
Math check
The middle 69% of a normally distributed population lies between what two standard scores? (Give your answers correct to two decimal places.) 0.69 and 0.31 
Math check
A population has a standard deviation ó of 28 units. (Give your answers correct to two decimal places.) (a) Find the standard error for the mean if n = 10. SD/Sqrt of N = 28/10^=.28 
math
Three hundred twelve viewers were asked if they were satisfied with TV coverage of a recent disaster. Gender Female Male Satisfied 90 53 Not Satisfied 124 45 (a) Find P(satisfied). (Give your answer correct to two decimal places.) (b) Find P(satisfied  female). (Give your ... 
math
Ms. shoemaker has 35 students in her classroom. Of those students 6/7 are right handed and 4/5 of te right handed students have brown eyes. How many right handed brown eyed students are in the class. 
Statistics
A history class is comprised of 5 female and 8 male students. If the instructor of the class randomly chooses 8 students from the class for an oral exam, what is the probability that 2 female students and 6 male students will be selected? Round your answer to decimal places. 
statistics: dependent event
A psychology class is comprised of 4 female and 6 male students. If the instructor of the class randomly chooses 6 students from the class for an oral exam, what is the probability that 2 female students and 4 male students will be selected? Round your answer to 3 decimal places 
Math check and question
x is a binomial random variable. (Give your answers correct to three decimal places.) (a) Calculate the probability of x for: n = 1, x = 0, p = 0.15 P(x) = Correct: Your answer is correct. . (0.85) (b) Calculate the probability of x for: n = 3, x = 3, p = 0.15 P(x) = Incorrect... 
stats
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ƒÏ = 0 in favor of ƒÏ ‚ 0 at ƒ¿ = .05? (Give your ... 
Math
Of households in the United States, 18 million, or 16%, have three or more vehicles, as stated in USA Today (June 12, 2002), quoting the Census Bureau as the source. (a) If two U.S. households are randomly selected, find the probability that both will have three or more ... 
statistics
Suppose that, for students who are enrolled in college algebra, 73 percent are freshmen, 48 percent are female, and 31 percent are female and are freshmen. Your answers below should be entered as decimals and rounded to three decimal places. Two students will be independently ... 
Math
URGENT! In a school, 8% of students are left handed. If 50 classes of 20 students are randomly selected, what is the probability of 10 classes have no left handed students? I know that this is a binomial distribution question, but I can't seem to do this question even though I... 
Stats
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ρ = 0 in favor of ρ ≠ 0 at α = .05? (... 
10th Grade Math
A history class is comprised of 6 female and 9 male students. If the instructor of the class randomly chooses 5 students from the class for an oral exam, what is the probability that 2 female students and 3 male students will be selected? Round your answer to 3 decimal places... 
Statistics
About 13% of the population is left handed. If two people are randomly selected what is the probability that both are left handed? 
math
if 11% of the population is left handed, what is the porbability that as least one of the first 20 strangers you meet is left handed 
Math
he world population at the beginning of 1990 was 5.3 billion. Assume that the population continues to grow at the rate of approximately 2%/year and find the function Q(t) that expresses the world population (in billions) as a function of time t (in years), with t = 0 ... 
algebra 1
the ratio of right handed to left handed students in the school was 3 to 14. if the total number in both categories was 714 how many right handed students were in the school? please help its due tomorrow! i totally forgot about the extra homework my teacher assigned. 
statistics help
Complete the hypothesis test with alternative hypothesis ƒÊd ‚ 0 based on the paired data that follows and d = O  Y. Use ƒ¿ = 0.01. Assume normality. Oldest 188 174 192 196 65 Youngest 186 168 199 199 69 (a) Find t. (Give your answer correct to two decimal places.) 0... 
English
A married couple met at Juanita College in Huntingdon, Pennslvania. They are both lefthanded,and they have set up a scholarship for needy left handed students attending Juanita. Here is my answer does it make sense? A married couple who met at Juniata College in Huntington, ... 
Math/Statistics
Consider the following. P(A) = 0.27 and P(B) = 0.36, A and B are mutually exclusive events (a) Find the probability P(A). (Give your answer correct to two decimal places.) (b) Find the probability P(B). (Give your answer correct to two decimal places.) (c) Find the probability... 
Math/Statistics
Consider the following. P(A) = 0.27 and P(B) = 0.36, A and B are mutually exclusive events (a) Find the probability P(A). (Give your answer correct to two decimal places.) (b) Find the probability P(B). (Give your answer correct to two decimal places.) (c) Find the probability... 
statistics
Produce a 99.9 % confidence interval for the population mean body temperature of a healthy male. Then do the same for the population of healthy females. Round your answers to three decimal places. 
Statistics
Onefifth of the population is lefthanded. A random sample of 20 people is selected. a) What is the probability that no more than 6 of the next 20 people are lefthanded. b) What is the probability that at least 4 of the next 20 people are lefthanded. 
Applied Calculus
The world population at the beginning of 1990 was 5.3 billion. Assume that the population continues to grow at the rate of approximately 2%/year and find the function Q(t) that expresses the world population (in billions) as a function of time t (in years), with t = 0 ... 
Math (Confused, no idea where to begin)
The voltage V across a charged capacitor is given by V(t) = 2e^0.16t volts, where t is in seconds (A) what is the voltage V(5) after 5 seconds? Find the time t when the voltage will be 1 volt Enter your answers to two decimal places V(5) approximately ___________ volts t ... 
4th grade
210 kids in class. one out of 7 in left handed the rest in right handed. how many are right handed. 
Math
Consider the following. P(A) = 0.27 and P(B) = 0.36, A and B are mutually exclusive events (a) Find the probability P(A). (Give your answer correct to two decimal places.) (b) Find the probability P(B). (Give your answer correct to two decimal places.) (c) Find the probability... 
Math check
Complete the following hypothesis test: Ho: ì = 52, Ha: ì < 52, á = 0.01 using the data below. 43 48 44 48 42 60 54 44 50 35 48 58 (a) Find t. (Give your answer correct to two decimal places.) 2.05 . (ii) Find the pvalue. (Give your answer correct to four decimal ... 
statistics
according to data from the american medical association, 10% of us are left handed. If three people, are randomly selected find the probability that they are all left handed. If groups of 50 people are randomly selected, what is the mean and stadard deviation of left handed ... 
Math
Approximately 1 in every 10 people is left handed. How many left handed people would you expect to find in a group of 430 people? 
Math/Statistics
Consider the following. P(A) = 0.31 and P(B) = 0.41, and P(A and B) = 0.1271 (a) What is P(A  B)? (Give your answer correct to two decimal places.) (b) What is P(B  A)? (Give your answer correct to two decimal places.) (c) Are A and B independent? yes no cannot be determined 
Math/Statistics
Consider the following. P(A) = 0.31 and P(B) = 0.41, and P(A and B) = 0.1271 (a) What is P(A  B)? (Give your answer correct to two decimal places.) (b) What is P(B  A)? (Give your answer correct to two decimal places.) (c) Are A and B independent? yes no cannot be determined 
Calculus
the population of deer in a certain area of cabarrus county grows proportional to itself. the population of deer in 2000 was found to be 45, and by 2008 the population had grown to 65. Find the growth constant k(rounded to 6 decimal places), and the expected deer population in... 
Math
A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c) What is the ... 
Math
A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c) What is the ... 
math
A single die is rolled. (a) What is the probability that the number on top is a 3. (Give your answer correct to two decimal places.) (b) What is the probability that the number on top is an odd number. (Give your answer correct to two decimal places.) (c) What is the ... 
8th grade
People can be lefthanded, righthanded or ambidextrous. The number of boys in Canadian secondary schools who are left handed is about 1/7 the number of boys who are righthanded. About 11% of boys are lefthanded. Write and solve an equation to determine what percent of boys ... 
maths
(a) Solve the following equations for x where possible, giving your solutions correct to three decimal places. (i) 3^x+1 1=5 (ii) 3×4^x =4×4^12x (b) Confirm that any solutions you found in part (a) are (approximately) correct by subsituiting into the original equation. 
Calculus
Calculate the population within a 6 mile radius of the city center if the radial population density is ρ(r) = 6(5+r2)1/3 (in thousands per square mile). (Use decimal notation. Give your answer to two decimal places.) 
statistics
Could someone work a problem like this one, for an example. Complete the hypothesis test with alternative hypothesis ìd < 0 based on the paired data that follow and d = M  N. Use á = 0.02. Assume normality. M 49 67 45 57 57 48 N 57 68 47 60 64 55 (a) Find t. (Give your ... 
Whitaker
A professor records the time (in minutes) that it takes 16 students to complete an exam. Compute the SS, the variance, and the standard deviation assuming the 16 students constitute a population and assuming the 16 students constitute a sample. (Round your answers for variance... 
statistics
A politician claims that she will receive 65% of the vote in an upcoming election. The results of a properly designed random sample of 100 voters showed that 49 of those sampled will vote for her. Is it likely that her assertion is correct at the 0.05 level of significance? (a...