Berkeley College students have been surveyed to determine if they prefer to work in groups or individually for projects. There are 4 students who prefer to work in groups for every 5 students who prefer to work individually. If there were 2,200 students who prefer to work in groups, how many students were surveyed in total?

Q: Last year at Townsburg High School, 28% of the graduating seniors took the ACT exam, 34% of the…

A: It is given that the proportion of the graduating seniors took the ACT exam is 0.28, the proportion…

Q: On a recent survey, 60% of those surveyed indicated that they preferred walking to running. If 540…

A: We will use basic arithmetic to solve this question. Just some knowledge of percentages is required…

Q: How many ways can first and second place be awarded to 12 racers?

A:

Q: .On a particularly boring transatlantic flight, one of the passengers amused himself by counting the…

A: let B: black haired Let W :  whole row n(B ∪ W) = 37n(B) =33n(W) = 6

Q: The men hired by a certain city police department must be at least 69 inches tall. If the heights of…

A: Given μ=70 inches and σ=2 inches We need to find, Z=X-μσ=69-702=-12=-0.5 Now to find the required…

Q: The research director of NASA must choose three experiments to send to the International Space…

A: The total number of experiments proposed = 17 Number of experiments need to be chosen = 3 We have to…

Q: A survey of 202 persons was conducted at TCC, and it was found that 83 persons carried a cell phone,…

A: It is given that, A survey was conducted over 202 people out of which No. of person who carried a…

Q: A car insurance company claims that 92% of its customers are happy with their service. You randomly…

A: Given,   The sample proportion is,

Q: In order to develop a more appealing​ cheeseburger, a franchise uses taste tests with different​ 9…

A: number of different type of buns=9 number of different type of cheeses=7 number of different  type…

Q: In a survey of middle school students, 70% play basketball and 40% play basketball and football. Of…

A:

Q: If the sampled tilapia number 500, how many of these are expected to weigh between 330 and 394…

A: Given that mu =370.2 , s.d = 32.7

Q: . In Exton School, 60% of the boys play football and 36% of the boys play ice hockey. Given that40%…

A: Let us define the events as, A: Boys who play football.B: Boys who play ice hockey. From the given…

Q: students have been surveyed to determine if they prefer to work in groups or individually for…

A:

Q: In a survey of 400 students in a school, 100 were listed as taking applejuice, 150 as taking orange…

A:

Q: d.If the true percentage is 10% and this obstetrician has 146 pregnant women under his care, how…

A: Here we have two types of outcomes viz. the pregnant woman will deliver prematurely or not. The…

Q: In a survey at a local university, 25% of students say that they get less than the recommended eight…

A: Given  Total students = 3900 Percentage of Students get less than the recommended eight hours of…

Q: We made a survey with the number of people in a household and the number of times they get sick…

A: Solution: Let x be the number of people in a household  y be the number of times they get sick in a…

Q: people

A: To find the percentage of Given problems

Q: 8. If 1500 students took the test, how many will NOT be awarded?

A: 8. From the given information, the probability for awarded is 30% P(awarded)=30%=0.30 P(not…

Q: A survey of 800 nurses yielded the following information: 430 were health club members, 575 were…

A: Number of nurses in a survey = 800 Number of health club members = 430 Number of smokers = 575…

Q: how many students were surveyed in total?

A:

Q: The number of ways to distribute 9 toys to 4 children so that the youngest child receives 3 toys and…

A:

Q: In a survey it was found that 21 people liked product A, 26 liked product B and29 liked product C.…

A: Let A, B, and C be the set of people who like product A, B, and C respectively.  Now since 21 people…

Q: Of the trains that recently arrived at Hampton Station, 4 were on time and 2 were late. Considering…

A: It is an important part of statistics. It is widely used.

Q: Among 120 pupils, it came out that 40 like both biscuits and toffees, 16 like neither and twice as…

A: Given: total no of people=120 No. of people who like neither biscuits and toffees=16 No. of people…

Q: Sarah chose to live on the honors floor of her dorm because she was told that the students on that…

A: Null Hypothesis: H0: The mean number of hours is greater than or equal to 11 hours. Alternative…

Q: In a fertility clinic, 40% of the women patients did not become pregnant, 30% had a singleton birth,…

A:

Q: A cafeteria manager surveyed a random sample of students at a school to determine which of 2 meal…

A:

Q: From a group of 20 nurses, 4 are to be selected to work a night shift. In how many ways can this be…

A:

Q: A recent survey by a local radio station shows that 3 of 8 listeners like a new song while 1/4 hate…

A:

Q: Last year , 1,345 bicyclists showed up to the bicycle race . This year , only 690 bicyclists showed…

A: Solution:  Given information:  Last year the number of bicyclists that showd up was 1345. This year…

Q: From 5 statisticians and 6 economists, a committee of size 6 is to be formed. How many different…

A: From 5 statisticians and 6 economists, a committee of size 6 is to be formed. How many different…

Q: uppose the proportion of all college students who have used marijuana in the past 6 months is p =…

A:

Q: At a liberal arts school, a survey of 100 students indicates that 68 enjoy their English class while…

A: Let,Number of students who enjoys English subject = n(E)Number of students who enjoys Mathematics…

Q: A survey is given to 95 members at the local gym and found that 56 members are taking Rock Climbing…

A: R = Rock Climbing Y = Yoga

Q: A container of beads contains: 8 red beads, 6 yellow beads, and 6 green beads. A bead will be drawn…

A:

Q: A landscaper wants to find the answer to the question "How much time do people in Raleigh, North…

A: To find which of the following option is best describe the accuracy of the result of the survey.

Q: A politician running for Senate in California claims that only 34% of Californians approve of the…

A: Concept of sampling distribution of sample proportion: Let a particular characteristic of a…

Q: A college survey was taken to determine where students study. Of 140 students s cafeteria, 76…

A:

Q: If a person is making the minimum salary for a construction worker, they are making more than what…

A:

Q: Suppose that the results of a survey show that 53% of people consider summer as their favorite…

A: Given that Results of a survey show that 53% of people consider summer as their favorite season.…

Q: If the number of smokers in a sample of 40 students selected from university A is 14 and the number…

A: Given data,For University An1=40x1=14p1=x1n1 =1440=0.35For University Bn2=380x2=84p2=x2n2…

Q: Suppose that the results of a survey show that 41% of people consider summer as their favorite…

A:

Q: On a recent survey, 60% of people said they preferred walking to running. If 540 people liked…

A: Number of people who liked walking = 540 Percentage of people who like walking = 60%

Q: If Albert Enstein has 53 socks in his drawer: 21 identical blue, 15 identical black and 17 identical…

A:

Q: Suppose that the result of a public opinion poll shows that just 10% of people would be willing to…

A:

Q: one group (a) contains 510 people. one third of the people in group a will be selected to win $50…

A:

Q: Suppose that the results of a survey show that 40% of people consider summer as their favorite…

A: Given Data: Let 'n' be sample size p^=0.4 Margin of error=0.04   Assuming level of significance to…

Q: Suppose that the results of a survey show that 28% of people consider summer as their favorite…

A: Given Data: p^=0.28 Let 'n' be the random sample Margin or error=0.06   Let us assume level of…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.