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All together, three cats get 248 grams of food each day. Write and solve the equation to find total amount of food each cat recieves each day.
A circle with centre O has radius r cm. A sector of the circle, which has an angle of radians at O, has perimeter 6 cm show that θ=6/r-2 and express the area of the sector in terms of r.
Manufacturer produces 1000 computer chips for mission-critical application. Find mean and standard deviation of the number of defective chips.
The company wishes to budget enough for each group that probability of expenses being over budget is at most 15%. How much must company budget for each manager?
A particular network has intruder with 40% probability. Given that both alarms sound, find the probability that intruder is present in network?
Critically discuss the differences among expressions, equations, and functions? Provide examples of each.
Here is a context-free grammar that can be used to generate algebraic expressions by arithmetic operators (addition, subtraction, multiplication, and division), in variables p, q, and r. The letter
Sketch histogram showing 20 sample means. (Use classes -0.5 to 0.5, 0.5 to 1.5, 1.5 to 2.5 and so on). Explain distribution of x-bars that you see in part b (shape of distribution, center, and amount
A health inspector at a restaurant will enter the kitchen and choose 5 stations to inspect from a predetermined list of 15 stations present in most restaurant kitchens. How many different sets of 5
The age of person being interviewed is not random variable in this situation. Describe why and explain how "age" is used with regard to age group.
Discuss the four-steps for solving quadratic equations. Can any of these steps be eliminated? Can the order of these steps be changed? Would you add any steps to make it easier, or to make it easier
Explain what effect each change in the standard deviation has on the:
Construct a scatter diagram for the data points and plot the least squares regression line on it. Find the least squares regression line.
If in his sample, 12 people voted, find the probability of picking a voter out of sample? How does this probability compare to population data?
The company policy for customer service representatives gives time off for positive reviews. If, in the first 20 calls a customer service agent handles In a day, 13 or more elect to take a subsequen
A health inspector at a restaurant will enter the kitchen and choose 5 stations to inspect from a predetermined list of 15 stations present in most restaurant kitchens.
Find slope of direct variation eqation. Find slope of direct variation eqation.
What is the natural domain of the function f(x) = 2x -1?
The laser used in a Compact Disc player has the time to failure which follows an exponential distribution with a mean of 1250 hours of playing time.
Discretionary household income in certain state is exponentially distributed with mean of $4,800 per year (i.e. ? = 1/4800). Approximately what proportion of households have discretionary income gr
A machine fills 100-pound bags with white sand. The actual weight of sand when machine operates at its standard speed of 100 bags per hour follows a normal distribution with a standard deviation of 1
An applicant needs a minimum score of 1300 to grain admission. What percentage of applicants meet or exceed the minimum qualification?
Determine the probability can will yield between 250 and 275 seconds of continuous spray. Determine the length of time in seconds for which 90% of cans will exceed in terms of continuous spray time.
If total is 17, then I roll two more dice and add that to total. If these two bonus dice total 20, then score of that game is 37. Of ten thousand games, determine the average score?
In a study of fraternal twins of different genders, researchers measured heights of each twin. The data show that for each matched pair, the height of male is greater than height of his twin sister.