In a sample of 169 students, 16 said they have donated blood. What percent of the students have donated blood?

Q: A survey of 350 people shows that 210 people have seen a movie in the last month. Find the sample…

A: The sample proportion (p̂) is calculated by dividing the number of people who have seen a movie in…

Q: On a test, a student got 80% of the items correct. If the Student got 56 items correct, how many…

A: Let x be the items on the test given: 80% of x is 56

Q: . If the medical faculty has 584 students registered, calculate how many medical students would be…

A: Given data in the problem is  University of the East Europe is interested in the overall performance…

Q: survey 100 students, 81 use Facebook, 36 use google, and 20 use both. what percentage uses what

A: Let represent the set of students who use Facebook, represent the set of students who use Google+,…

Q: there are 347 people that take a survey and assume that 112 of them are women. what percentage of…

A: The percentage of females in the survey is calculated below:

Q: A survey shows that 3/5 Australian adults are overweight and 1/10 Australian adults are obese. What…

A:

Q: At The Fencing Center, 60% of the fencers use the foil as their main weapon. We randomly survey 28…

A: Given n=28 P=1-0.6=0.4

Q: n Internet poll asked 4272 U.S. adults about their use of smart watches and fitness trackers. A…

A: Given:

Q: There were 150 students that were asked about their favorite animal.  23 students chose hamsters, 48…

A: Total students = 150 No. of students who chose hamsters as their favorite animal = 23 No. of…

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: speech therapist gave a patient an assessment to test articulation. The patient pronounced 5 test…

A:

Q: At Roxbury Community College, 7 out of every 10 students take Introduction to Statistics. If there…

A: Given that, At some college 7 out of every 10 students take introduction to statistics. Formula:…

Q: A researcher wants to find out the number of students he needs to urvey in a school provided that…

A: Given : total no pf students in a school  N=5000 with margin of error e=5%  To find sample size…

Q: A fast food chain surveyed a random sample of students to determine what pizza they prefer. Cheese…

A:

Q: Identify the population and sample. In a random sample of Salinas residents, 137 said they would…

A: Population: The population in a statistical study is the entire group of individuals about which we…

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: Report the proportion of the 370 students based on mobile phone brands as a percentage. Apple  269…

A: The percentage of a category can be calculated by dividing the frequency of the category by the…

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

Q: A middle school has 250 students. Jenny surveys a random sample of 50 students and finds that 15 of…

A: Total number of students in school = 250 Sample taken of 50 students Number of students having maths…

Q: In a village actually invaded by anthrax, 65% of the gouts were attacked and 90% have been…

A:

Q: 36% of the children in a school have a dog, 24% have a cat, and 12% have a dog and a cat. What…

A: The percent of those who have a cat also have a dog is, PDog|Cat=PDog ∩…

Q: Take a random sample of 50 pages from a book and estimate the proportion of all pages that contain…

A: Here we want to find proportion of pages that contain figures.

Q: among students of a certain university 38 like peanut butter, 34% like nutella, and 12% like both.…

A: It is given that:Proportion of students like peanut butter: Proportion of students like nutella:…

Q: If 200 subjects were studied and 120 of them expressed a preference for Brand X, what percentage…

A: The total number of subjects is 200.

Q: In a comparison taste test of two juice drink 780 people preferred Cranberry Blast.Only 220 people…

A: In a comparison taste test of two juice drink 780 people preferred Cranberry Blast.Only 220 people…

Q: If in a village actually involved by anthrax, 70 per cent of the goats are attacked and pei cent…

A:

Q: 35% of a sample of employees are vaccinated.if 390 are not vaccinated, how many are vaccinated

A:

Q: Last year, 41% of business owners gave a holiday gift to their employees. A survey of business…

A: Given Information : Population proportion , p = 0.41. Sample proportion , p⏞ = 0.32. Number of…

Q: A survey reported that 10% of 1800 employees favored a new insurance program. How many employees…

A:

Q: estimate the sample size for a population of 750 people.

A: To estimate the sample size the required calculation can be defined by the formula  Slovin's…

Q: among the 1018 respondents, 428 said that pesticides are "not at all harmful."  What percentage of…

A: Total number of respondents = 1018Total number of respondents said that pesticides are "not at all…

Q: According to FBI data, 12% of burglaries.   What should we conclude if the detective clears all…

A: Introduction to binomial distribution: Consider a random experiment involving n independent trials,…

Q: i need 20 to be 30 for the sample section

A: The mean is 1.8 and the standard deviation is 0.5.

Q: A survey of the mathematics faculty at wassamatta university indicates that 9 faculty members are…

A: Given: A survey of the mathematics faculty at wassamatta university indicates that 9 faculty members…

Q: 8% of the responding groups said they committed crimes under the influence how many students…

A: According to given information 8% students are 143.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.