Last week a gumball machine dispensed 10 white gumballs and 16 other gumballs. Considering this data, how many of the next 78 gumballs dispensed should you expect to be white gumballs?

Q: Of the 1800 students at Harrison Middle School, 35% made the honor roll last semester. How many…

A: It is given that  Total students N = 1800 P = proportion of students made honor roll last semester =…

Q: Last month,137 people signed up for the swim lessons at city pool. Each of the 7 swim teachers had…

A: Given that 137 people signed for swim lessons. We need to find the number of students that each of…

Q: Thirty percent of high-school senior boys play in the school band. If a certain high school has 60…

A: Given: Total boys = 60  Play in the band = 30% = 30/100

Q: In a​ company, 95​% of the workers are women. If 115 people work for the company who​ aren't women​,…

A: Let the total no.of workers are X. Given, 115 people aren't women . Then ,no of women workers=X-115

Q: According to the Bureau of Labor Statistics, in 2012, 35% of all American computer systems analysts…

A: In mathematics, a percentage is a number or ratio expressed as a fraction of 100. It is often…

Q: To estimate the number of bass in a lake, a biologist catches and tags 24 bass. Several weeks later,…

A: The objective is to determine the number of bass in the lake. Let the number of bass in the lake is…

Q: 9% of Ivy tech students are dual credit students. If there are 13,936 dual credit students, how many…

A:

Q: A toy manufacturer estimate that 6% of its products are defective. If 550 toys are produced in one…

A:

Q: The following box-plot contains the cholesterol levels of 100 patients. 154 180 211 265 197.5 + 225…

A: Given Min=154 Q1=180 Q2=197.5 Q3=211 Max=265

Q: Approximately 99.6% of the runners who started a marathon or 20541 people crossed the finish line.…

A:

Q: Mr Hudson, the principal at Hoover High School, counted 31 seniors absent on Senior Skip Day. if…

A: Topic:- persentage

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: Rhonda took a ribbon which was originally 81 cm in length. She cut the ribbon in thirds and measured…

A: Here, n is the number of cuts. Then, by the above information, length of ribbon piece, L(n)=813n We…

Q: In a newspaper, it was reported that yearly robberies in Springfield were down 50% to 93 in 2013…

A: Let there were x robberies in 2012 in Springfield. Given that the robberies went down by 50% So in…

Q: The last Harry Potter book went on sale at 12:01 a.m. on July 21, 2007. The publisher Scholastic…

A: The portion of a number can be evaluated by multiplying the fraction of the portion required to the…

Q: A recent survey found that 79% of Americans use the Internet. If a city has a population of 76,000,…

A: Population of city, p=76,000 Percentage of population that uses internet is 79%.

Q: 3 An animal shelter has a 61% adoption rate for puppies. Of all puppies in the shelter, 77% live to…

A: The probability of selecting two items whos individual probability are p and q is given by; P(x)=p·q

Q: In a recent year, 5 out of 7 movies cost between $50 and $99 million to make. At this rate, how many…

A:

Q: recent study revealed that 49% of adult Americans believe human activity contributes a great deal to…

A: Given that, A recent study revealed that 49% of adult Americans believe human activity contributes a…

Q: A group of 125 college students are surveyed about their note taking and study habits. Some results…

A:

Q: 20. Examine the histogram below. Students 4 50-59 60-69 70-79 90-100 80-89 Scores on exam If…

A: Passing criteria is ,  higher than 70 marks .

Q: The mean of 12 numbers is 48. Removing one of the numbers causes the mean to decrease to 45. What…

A: Measures of Central Tendency: A measure of central tendency represents the central value or typical…

Q: There were 256 farmers in the county 30 years ago. Five eighths of those farmers have changed…

A: Total farmers = 256  Farmers changed Occupation = (5/8) of 256

Q: Nick and his team collected tanned and released 27 deer several days later the teams return to the…

A: Let 'x' be the total population of deer. Now from given data we form equations in ratio form. ratio…

Q: In a bird sanctuary, 30% of the birds are hummingbirds. If there are about 350 birds in the…

A: In a bird sanctuary 30% of the birds arehumming birds. if there are about 350 birds in the sanctuary…

Q: a local government had an employee reduction and lost 1/5 of its employees . If 88 of its employees…

A:

Q: When Jaylen started high school, 1, 430 students attended his school. On the day of his graduation,…

A: Starting, NO=1430Now, n =1001

Q: A statistics professor kept attendance records and recorded the number of absent students per class.…

A: Histogram: The frequency distribution of a set of values illustrates how frequently each unique…

Q: ive a life expectancy of x = 71.5 years with a standard deviation of s, = 6.6 years. A sample of 6…

A: According to guidlines we can strickly answer three subspartsRural town:Sample size Sample mean…

Q: There are 400 students at Washington Middle School, and 100 of them are in sixth grade. What percent…

A: Percentage is ratio which is expressed as a fraction of 100. The symbol % is used to denoted…

Q: If 1% of a shipment of 2000 light bulbs is defective, how many bulbs in the shipment are NOT…

A: Given, 1%  of a shipment of 2000 light bulbs is defective i.e, number of defective bulbs = 2000 *…

Q: One week in the midwest, 3.4 inches of snow fell on Monday, 0.6 inches on Tuesday, 2.2 inches on…

A: Let the amount of snow on Friday = x inches  So the total amount of snow=…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.