Mathematics problem solving

1. A farmer bought a number of pigs for $200. However, 6 of them died before he

1. A farmer bought a number of pigs for $200. However, 6 of them died before he could sell the rest at a profit of 4 per pig. His total profit was $28. How many pigs did he origin…

1. A farmer has a rectangular garden plot surrounded by 200 ft of fence. Find th

1. A farmer has a rectangular garden plot surrounded by 200 ft of fence. Find the length and width of the garden if its area is1600 ft2. width __ ft (smaller value) length __ ft (…

1. A federal report finds that lie detector tests given to truthful persons have

1.         A federal report finds that lie detector tests given to truthful persons have probability about 0.2 of suggesting that the person is deceptive. A company asks 12 job ap…

1. A firm operates two distribution centers, one in Phoenix and the other is Chi

1. A firm operates two distribution centers, one in Phoenix and the other is Chicago. A customer in College Station, TX needs solar panels produced by the firm. The cost to produc…

1. A firm operates two distribution centers, one in Phoenix and the other is Chi

1. A firm operates two distribution centers, one in Phoenix and the other is Chicago. A customer in College Station, TX needs solar panels produced by the firm. The cost to produc…

1. A five number summary for a data set is given by the minimum, the maximum, th

1. A five number summary for a data set is given by the minimum, the maximum, the first quartile (Q1), the median, and the third quartile (Q3). Assume that, in a particular data s…

1. A fleet of rental cars - all the same make, model, and year - has a mean fuel

1. A fleet of rental cars - all the same make, model, and year - has a mean fuel efficiency of 27 miles per gallon (mpg). A random sample of 43 cars are selected and the air filte…

1. A fleet of rental cars - all the same make, model, and year - has a mean fuel

1. A fleet of rental cars - all the same make, model, and year - has a mean fuel efficiency of 27 miles per gallon (mpg). A random sample of 43 cars are selected and the air filte…

1. A flying club wants to share time on an airplane. There are usually more than

1. A flying club wants to share time on an airplane. There are usually more than 5 people in the club at any time. They decide to share the airplane by dividing the week up into t…

1. A forester studying the effects of fertilization on certain pine forests in t

1. A forester studying the effects of fertilization on certain pine forests in the Southeast is interested in estimating the average basal area of pine trees. In studying basal ar…

1. A forestry company planted a population of Douglas fir trees 30 years ago. To

1. A forestry company planted a population of Douglas fir trees 30 years ago. Today, the trunk diameters of these trees have a mean of 6.87 inches and a standard deviation of 1.07…

1. A freight train and a passenger train start towardeach other at the same time

1. A freight train and a passenger train start towardeach other at the same time from two towns that are 500 milesapart. After 3 hours the trains are still 80 miles apart. If thea…

1. A friend who works in a big city owns two cars, one small and one large.Thrce

1. A friend who works in a big city owns two cars, one small and one large.Thrce quarters.f the time he drives the small car to work, and one-quarter of the time he drives the lar…

1. A friend who works in a big city owns two cars, one small and one large.Thrce

1. A friend who works in a big city owns two cars, one small and one large.Thrce quarters.f the time he drives the small car to work, and one-quarter of the time he drives the lar…

1. A gambler wants to test whether the die she has is fair so she rolls it 300 t

1. A gambler wants to test whether the die she has is fair so she rolls it 300 times and records the outcomes as Rol 1 2345 6 Count 48 34 53 47 58 60 meaning she rolled a 1 on the…

1. A gambler wants to test whether the die she has is fair so she rolls it 300 t

1. A gambler wants to test whether the die she has is fair so she rolls it 300 times and records the outcomes as Roll 1 23 4 5 6 Count 48 34 53 47 58 60 meaning she rolled a 1 on …

1. A gambler wants to test whether the die she has is fair so she rolls it 300 t

1. A gambler wants to test whether the die she has is fair so she rolls it 300 times and records the outcomes as Roll 1 23 4 5 6 Count 48 34 53 47 58 60 meaning she rolled a 1 on …

1. A gambler wants to test whether the die she has is fair so she rolls it 300 t

1. A gambler wants to test whether the die she has is fair so she rolls it 300 times and records the outcomes as Roll 1 23 4 5 6 Count 48 34 53 47 58 60 meaning she rolled a 1 on …

1. A gambler wants to test whether the die she has is fair so she rolls it 300 t

1. A gambler wants to test whether the die she has is fair so she rolls it 300 times and records the outcomes as Roll 1 23 4 5 6 Count 48 34 53 47 58 60 meaning she rolled a 1 on …

1. A game is played with tokens according to thefollowing rule. In each round, t

1. A game is played with tokens according to thefollowing rule. In each round, the player with the mosttokens gives one token to each of the other players and also placesone token…

1. A game is played with tokens according to thefollowing rule. In each round. t

1. A game is played with tokens according to thefollowing rule. In each round. the player with the mosttokens gives one token to each of the other players and also oftokens. Playe…

1. A glass tube maker claims that their tubes have lengths that are have true me

1. A glass tube maker claims that their tubes have lengths that are have true mean 9.00cm, and true variance 0.25cm2 . (a) What is the probability that a random sample of 40 tubes…

1. A good demonstration is defined as: a) Is essential in research presentations

1. A good demonstration is defined as: a) Is essential in research presentations to facilitate understanding of statistics   b) creates a natural, emotional response   c) contains…

1. A group of 500 students have an average age of 18.4 years with a standard dev

1. A group of 500 students have an average age of 18.4 years with a standard deviation of 0.9. The ages are normally distributed. Find the probability that a person is selected at…

1. A group of 6 volleyball players, Ally, Brad, Claire, Devon, Ewing, and Frank

1. A group of 6 volleyball players, Ally, Brad, Claire, Devon, Ewing, and Frank are going to play doubles (two on each team). Suppose that they decide to draw four names out of a …

1. A group of 6 volleyball players, Ally, Brad, Claire, Devon, Ewing, and Frank

1. A group of 6 volleyball players, Ally, Brad, Claire, Devon, Ewing, and Frank are going to play doubles (two on each team). Suppose that they decide to draw four names out of a …

1. A group of people were selected and polled about their opinion on imposing ne

1. A group of people were selected and polled about their opinion on imposing new knife control laws. Everyone was asked other questions about themselves as well party. Sex Party …

1. A group of researchers investigated the effect of media usage (whether or not

1. A group of researchers investigated the effect of media usage (whether or not sub watch television or use the Internet) in the bedroom on "Tiredness during the day (measured on…

1. A group of scientist are investigating the airspeed velocity of unladen swall

1. A group of scientist are investigating the airspeed velocity of unladen swallows. After gathering the data, they have determined that the data is normally distributed with a 10…

1. A group of veterinarians at a major veterinary hospital was interested in inv

1. A group of veterinarians at a major veterinary hospital was interested in investigating a possible link between enteroliths, stones that form in the colon of horses, and diet. …

1. A group of veterinarians at a major veterinary hospital was interested in inv

1. A group of veterinarians at a major veterinary hospital was interested in investigating a possible link between enteroliths, stones that form in the colon of horses, and diet. …

1. A group separated into men and women are asked their preference toward certai

1. A group separated into men and women are asked their preference toward certain types of candy bars. The following table gives the results. Which of the following statements are…

1. A healthcare provider offers a single service to its patients, and the patien

1.    A healthcare provider offers a single service to its patients, and the patients are covered by only two different third parties.   Payer 1, Medicare, represents 50% of the p…

1. A high school counselor wants to examine whether the teenage pregnancy rate a

1. A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide. She knows that the rate nationwide is 15 %. She…

1. A high school counselor wants to examine whether the teenage pregnancy rate a

1. A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide. She knows that the rate nationwide is 15 %. She…

1. A high school counselor wants to examine whether the teenage pregnancy rate a

1. A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide. She knows that the rate nationwide is 15 %. She…

1. A high school counselor wants to examine whether the teenage pregnancy rate a

1. A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide. She knows that the rate nationwide is 15 %. She…

1. A high school counselor wants to examine whether the teenage pregnancy rate a

1. A high school counselor wants to examine whether the teenage pregnancy rate at her school is different from the rate nationwide. She knows that the rate nationwide is 15 %. She…

1. A highway has an optional toll lane that drivers may take to reduce the time

1. A highway has an optional toll lane that drivers may take to reduce the time they spend driving. Drivers pay a small fee to enter the toll lane ($0.25). Then, once they leave t…

1. A honeybee population starts with 100 bees and increases at a rate of n?(t) b

1. A honeybee population starts with 100 bees and increases at a rate of n?(t) bees per week. 2. A bacteria population starts with 375 bacteria and grows at the rate of r(t)=(450)…

1. A horizontal wire is hung from the ceiling of a room by two massless strings.

1. A horizontal wire is hung from the ceiling of a room by two massless strings. The wire has a length of 0.23 m and a mass of 0.077 kg. A uniform magnetic field of magnitude 0.06…

1. A hospital administration did a survey of patients regarding satisfaction wit

1. A hospital administration did a survey of patients regarding satisfaction with care and type of surgery, results: Assume the sample represents the entire population of patients…

1. A hotel manager is interested in the amount of time required for their shuttl

1. A hotel manager is interested in the amount of time required for their shuttle to make the trip from the airport pick-up spot to their front entrance. They find that the distri…

1. A hybrid SUV consumes fuel at a rate of 12.1 km/L. How many miles can the car

1. A hybrid SUV consumes fuel at a rate of 12.1 km/L. How many miles can the car travel on 21.0 gallons of gasoline?    2. How much heat in joules is required to heat a 47 g sampl…

1. A hypothesis test for a population mean is to be performed.True or false: for

1. A hypothesis test for a population mean is to be performed.True or false: for a fixed sample size, increasing the significancelevel will decrease the power of the test? A) True…

1. A hypothesis test returns a p-value of 0.06 against the null hypothesis: The

1. A hypothesis test returns a p-value of 0.06 against the null hypothesis: The identification of an elementary student as"gifted" is independent of their identification as dyslex…

1. A laboratory sample of gas is known to have a carbon monoxide (CO) concentrat

1. A laboratory sample of gas is known to have a carbon monoxide (CO) concentration of 50 parts per million (ppm). A spectrophotometer is used to take three independent measuremen…

1. A ladder 25 ft long is leaning against the side of a house. The base of the l

1. A ladder 25 ft long is leaning against the side of a house. The base of the ladder is pulled away from the wall at a rate of 2 feet per second. How fast is the top moving down …

1. A lamina occupies the part of the disk x 2 + y 2 ? 36 in the first quadrant.

1. A lamina occupies the part of the diskx2+y2?36in the first quadrant. Find the center of mass of the lamina if the density at any point is proportional to the square of its dist…

1. A landowner in Texas is offered $200,000 for the exploration rights to oil on

1. A landowner in Texas is offered $200,000 for the exploration rights to oil on her land, along with a 25% royalty on the future profits if oil is discovered. The landowner is al…