Mathematics problem solving

1)Let X be the number of aces in a randomly chosen hand of 4cards (from an ordin

1)Let X be the number of aces in a randomly chosen hand of 4cards (from an ordinary deck of 52 cards). Find E(X) and Var(X) 2) repeat part 1 if the size of hand is 6 cards instead…

1)Let the universe of discourse be the set of relations on the set A. Write the

1)Let the universe of discourse be the set of relations on the set A. Write the following English sentences as a logical expression, using quantifers, logical expressions, and set…

1)List the IV(s) 2)Is the IV categorical? 3)If so, how many levels of IV(s) are

1)List the IV(s) 2)Is the IV categorical? 3)If so, how many levels of IV(s) are there? Describe the levels. 4)Is the IV manipulated? 5)Did the study use random assignment? 6)List …

1)Loads are typically not included in the fault currents studies in this Chapter

1)Loads are typically not included in the fault currents studies in this Chapter. How do loads impact the faults currents in practical applications? 2)What about the impedances of…

1)Locate the absolute extrema of the given function on the closed interval [-24,

1)Locate the absolute extrema of the given function on the closed interval [-24,24] a) Find the critical numbers of f (if any); b) Find the open intervals where the function is in…

1)Perform the indicated operations and simplify. (4rs2)(3r2s2)(4s) 2)Perform the

1)Perform the indicated operations and simplify. (4rs2)(3r2s2)(4s) 2)Perform the indicated operations and simplify. 5x(3x2 + 5x 4) + 3x(x2 5) 3)Perform the indicated operations an…

1)Please type the assumptions required for a binomial normal approximation using

1)Please type the assumptions required for a binomial normal approximation using inequalities and the following symbols (n,p,q) where n is the sample size, p is the probability pa…

1)Provide descriptive statistics for both excel files (e.g., sample size, mean,

1)Provide descriptive statistics for both excel files (e.g., sample size, mean, median, standard deviation, standard error). What are your preliminary observations of the descript…

1)Recall from Example 1 that whenever Suzan sees a bag of marbles, she grabs a h

1)Recall from Example 1 that whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing four red marbles, five green ones, four white ones,…

1)Restaurants can be classfied as \"full service\" or quick service. Full servic

1)Restaurants can be classfied as "full service" or quick service. Full service restaurants seat customers at a table that is assigned to a server who takes the customers order.th…

1)Show all local extrema and inflection points y=-x^4+4x^2-7 The graph to the ri

1)Show all local extrema and inflection points y=-x^4+4x^2-7 The graph to the right shows the first derivative of a function y = f(x). Select a possible graph f that passes throug…

1)Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. I

1)Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this filling machine follows a normal distribution wit…

1)Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. I

1)Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this filling machine follows a normal distribution wit…

1)Suppose a random sample of n = 16 observations is selected from a population t

1)Suppose a random sample of n = 16 observations is selected from a population that is normally distributed with mean equal to 101 and standard deviation equal to 12.             …

1)Suppose that we have a right circular cylinder with a constant h=4 feet and th

1)Suppose that we have a right circular cylinder with a constant h=4 feet and the radius is increasing at a constant rate. At what rate is the volume of this cylinder changing whe…

1)Suppose you want to design a non-inverting amplifier (see( Figure 1 ) ) with a

1)Suppose you want to design a non-inverting amplifier (see(Figure 1) ) with a gain of 6, using a 75 k? resistor in the feedback path and Rs = 15.0 kohms. Suppose you wish to ampl…

1)Sweet water and Associates write weekend trip insurance at a verynominal charg

1)Sweet water and Associates write weekend trip insurance at a verynominal charge . Records show that the probability that a motoristwill have an accident during the week end and …

1)Sweet water and Associates write weekend trip insurance at a verynominal charg

1)Sweet water and Associates write weekend trip insurance at a verynominal charge . Records show that the probability that a motoristwill have an accident during the week end and …

1)The March 2000 CPI (1982--84 = 100) was 171 but the component of the CPI for t

1)The March 2000 CPI (1982--84 = 100) was 171 but the component of the CPI for television sets was 52. There were great improvement in quality and features in television sets betw…

1)The heights of students at a college are normally distributed with a mean of 1

1)The heights of students at a college are normally distributed with a mean of 175 cm and a standard deviation of 6 cm. One might expect in a sample of 1000 students that the numb…

1)The list of books that your friend read for school for the past five months is

1)The list of books that your friend read for school for the past five months is shown below. Gone GirlGone Girl The RacketeerThe Racketeer Spring FeverSpring Fever Kiss The DeadK…

1)The list of books that your friend read for school for the past five months is

1)The list of books that your friend read for school for the past five months is shown below. Gone GirlGone Girl The RacketeerThe Racketeer Spring FeverSpring Fever Kiss The DeadK…

1)The local paper wants to estimate the proportion of all eligable voters that a

1)The local paper wants to estimate the proportion of all eligable voters that are undecided in the mayoral election. Find the minimum sample size required to estimate this propor…

1)The point P(2,5) and Q(3,12) lie on the parabola y=x^2+2x-3 a)Find the slope o

1)The point P(2,5) and Q(3,12) lie on the parabola y=x^2+2x-3 a)Find the slope of the secant PQ. b)Find the slope of the tangent to the parabola at P c)Find the equation of the ta…

1)The population proportion and sample proportion always has the same value. Tru

1)The population proportion and sample proportion always has the same value. True or false? A. False B. True 2)Without doing any computation, decide which has a higher probability…

1)The z-score boundaries for the critical region aredetermined by ____. A) the n

1)The z-score boundaries for the critical region aredetermined by ____. A) the null hypothesis B) the sample data C) the size of the standard error D) the alpha level 2)The null h…

1)The z-score boundaries for the critical region aredetermined by ____. A) the n

1)The z-score boundaries for the critical region aredetermined by ____. A) the null hypothesis B) the sample data C) the size of the standard error D) the alpha level 2)The null h…

1)True or false: All processes have variation. 2)For a sampling distribution of

1)True or false: All processes have variation. 2)For a sampling distribution of x¯ with Normal shape, what percentage of all possible x¯'s are between 3n and +3n? 3)Fill in the bl…

1)Urea broth was prepared and sterilized by autoclaving. Bacteria was inoculated

1)Urea broth was prepared and sterilized by autoclaving. Bacteria was inoculated and after an overnight incubation, the color was unchanged. What conclusion can you make from this…

1)Use Bayes\' theorem or a tree diagram to calculate the indicated probability.

1)Use Bayes' theorem or a tree diagram to calculate the indicated probability. Round your answer to four decimal places. P(A | B) = .6, P(B) = .4, P(A | B') = .8. Find P(B | A). P…

1)Use Bayes\' theorem or a tree diagram to calculate the indicated probability.

1)Use Bayes' theorem or a tree diagram to calculate the indicated probability. Round your answer to four decimal places. P(A | B) = .2, P(B) = .8, P(A | B') = .1. Find P(B | A). P…

1)Use a system of equations to find the parabola of the form y=ax^2+bx+c that go

1)Use a system of equations to find the parabola of the form y=ax^2+bx+c that goes through the three given points. (2,20),(-4,38),(-2,8) 2)FIND AN EQUATION THROUGH THE LINE THROUG…

1)Use the Law of Sines to solve for all possible triangles that satisfy the give

1)Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Bel…

1)Use the Law of Sines to solve for all possible triangles that satisfy the give

1)Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Bel…

1)Use the normal distribution of fish lengths for which the mean is 9 inches and

1)Use the normal distribution of fish lengths for which the mean is 9 inches and the standard deviation is 2 inches. Assume the variable x is normally distributed. left parenthesi…

1)Use the normal distribution of fish lengths for which the mean is 9 inches and

1)Use the normal distribution of fish lengths for which the mean is 9 inches and the standard deviation is 2 inches. Assume the variable x is normally distributed. left parenthesi…

1)What does the Central Limit Theorem say, and why is it so important to inferen

1)What does the Central Limit Theorem say, and why is it so important to inferential statistics? 2) Why would someone want to know whether a sample had more than 30 observations? …

1)What is linear approximation used for? Why would you use the linear approximat

1)What is linear approximation used for? Why would you use the linear approximation of a function rather than the actual function? 1b.) State the general formula for La(x), the li…

1)What is linear approximation used for? Why would you use the linear approximat

1)What is linear approximation used for? Why would you use the linear approximation of a function rather than the actual function? 1B)State the general formula for La(x), the line…

1)What is the exact mathematical relationship between the width of a confidence

1)What is the exact mathematical relationship between the width of a confidence interval and the Maximum Error of Estimate? 2)In your own words, describe the relationship between …

1)When computing the test statistic for a hypothesis test, who do we assume Ho i

1)When computing the test statistic for a hypothesis test, who do we assume Ho is true? 2)In a hypothesis test, what does the P-value measure? I.e. what is the P-value the probabi…

1)When the probability of each state of nature occurring is unknown, the situati

1)When the probability of each state of nature occurring is unknown, the situation is referred to as decision making under: a. certainty b. uncertainty c. risk d. expected value 2…

1)Which are the possible alternative hypotheses we can formulate when working wi

1)Which are the possible alternative hypotheses we can formulate when working with a single sample?How do different hypotheses influence the critical values that determine the lim…

1)Which type of bias might result from asking members of the hockey team if they

1)Which type of bias might result from asking members of the hockey team if they think they will make the playoffs. a) household bias b) sampling bias c) response bias d) non- res…

1)You would like to select a material for the electrical contacts in an electric

1)You would like to select a material for the electrical contacts in an electrical switching device that opens and closes frequently and forcefully. What properties should the con…

1)also find the test statistic from the give table. 2)find the p-value round you

1)also find the test statistic from the give table. 2)find the p-value round your answers to three decimal places as needed Question Help In an experiment with 10 pairs of stores,…

1)also find the test statistic from the give table. 2)find the p-value round you

1)also find the test statistic from the give table. 2)find the p-value round your answers to three decimal places as needed Question Help In an experiment with 10 pairs of stores,…

1)find b such that the line y=b divides the region bounded by the graphs pf the

1)find b such that the line y=b divides the region bounded by the graphs pf the two equations into two regions of equal area. round answers to 3 decimal places. y=49-x^2, y=0....b…

1)if a six sided fair is rolled two times and a 2 shows up both times, the proba

1)if a six sided fair is rolled two times and a 2 shows up both times, the probability of a 2 on the third trial is? 2) if a and b are independent events with p(a) = 0.2 and p(b) …

1)q8.36 (b) 2)q9.8 ======= please help me with this (( in 20l subject )) the boo

1)q8.36 (b) 2)q9.8 ======= please help me with this (( in 20l subject )) the book I study from is ( statistics:a first course by B.M.perles & J.E.freund) 9.7 To estimate the a…