Questions and answers by

Mary Ann

Questions (174)

Hi Ms. SueI was wondering if you could give me some advise in doing explain and unexplain variation and least-squares regression
1. 1 answer
2. 612 views
What is the value of the Y-intercept of the least-squares regression line from this data? Round you answer to at least two
1. 0 answers
2. 909 views
I really need help I do not understand how to start this problem.A machine that manufactures automobile parts produces defective
1. 0 answers
2. 637 views
determine the value of CP(-c<z<c)= 0.9736 the two marks that are < have a line under them. Can someone show me how to do this
1. 1 answer
2. 469 views
At a local college,147 of the male students are smokers and 343 are non-smokers. Of the female students,180 are smokers and 420
1. 2 answers
2. 1,033 views
Hi I know how to find P(A and b) and P(AuB)My problem is finding say P(A)=0.60 and P(B with a line over the B)=0.40. what do I
1. 0 answers
2. 520 views
I am doing estimating Standard deviation of grouped data.I have done all the sum freg 60/ midpoint 2580/ x bar is 43 for all/
1. 1 answer
2. 453 views
According to Chebyshev's theorem, at least a percentage of either,56%,75%,85%,89% of the measurements lie between 119.3 mmHg and
1. 1 answer
2. 600 views
I am having a problem finding the 75 percentile.I did 75/100 x17 I come up with 12.75 do I round that up and do I bring it to
1. 1 answer
2. 369 views
Summation of indexed data,I added the numbers up and I get -27 find the summation 29x does this mean I multiply the -27 by 29
1. 1 answer
2. 579 views
writing an equation of a line given the y-intercept and another point.It say to write an equation of the line one point is on y0
1. 1 answer
2. 474 views
graphing a line through a given point with a given slope.graph a line with slope -1 passing through the point(1, -3) Thank you
1. 6 answers
2. 1,763 views
Hi Steve,Sorry I did not explain my self better than I did. See this is the second time taking this Statistic course,and I have
1. 2 answers
2. 542 views
good evening, I was wondering if you could direct me in right direction to lean how to evaluate a line that is there with two
1. 2 answers
2. 521 views
Find the value of the following"10!7! over 12!5! If your answer is not an integer, write it as an exact fraction. Thank you
1. 1 answer
2. 462 views
could someone please let me know where I can find this type of question to read.discuss three key aspects of the school
1. 1 answer
2. 451 views
If someone can explain how to do this problem so I can learn and understand.you have a sample of 50 people. Based on the
1. 1 answer
2. 439 views
my question is:So if the chance is 1 in 17,259,390 of winning, what is the expected value of the win? How would I do this
1. 1 answer
2. 435 views
Evaluate the following expression.Can you explain how to get the answer to this question please. [15 + 6 x(15-13)]divide by 9
1. 2 answers
2. 685 views
The following is a list of 11 measurements:-78, -1, 92, -24, 59, 21, 51, -2, 65, 37, 11 . Find 11 over sum,under sum i=l than Xi
1. 0 answers
2. 703 views
select ten (10) states and calculate the mean and standard deviation for average insurance costs. Next, calculate the mean and
1. 2 answers
2. 529 views
Could someone please show how this is done or explain how to do it. thank youThe pie chart below shows how the annual budget for
1. 3 answers
2. 783 views
If someone could show me how to do this, I am very confused. thank you for your time.Find the y-intercept of the line whose
1. 2 answers
2. 396 views
Find the y-intercept of the line whose equation is y=1.3x-0.4Thank you Could you show me how to do this problem.
1. 1 answer
2. 416 views
find both the x - intercept and the y-intercept of the line given by the equation 1.8x+9.9y-6.3=0. Round the answer to 2 decimal
1. 1 answer
2. 433 views
How can I solve this question,Write 83.9% as a decimal, and write 0.038 as a percentage. I just can not remember how to do this.
1. 6 answers
2. 989 views
Evaluate the following.20 divide 5+8+2x4 Thank you
1. 1 answer
2. 466 views
The records of a computer retail store show that out of the 100 customers who purchased a desktop computer last month, 69 also
1. 1 answer
2. 1,449 views
If someone could help with this problem so I can understand how to perform the actions.In the past year, Carmen watched 51
1. 3 answers
2. 539 views
[(15-8)x3-13]divide 2
1. 1 answer
2. 309 views
Find three ordered pairs that satisfy the equation(x,y)= (0, (x,y)= (1,1) (x,Y)= (2,3) not sure about the zero Thank you, If
1. 4 answers
2. 564 views
Graph the first-degree inequality in two unknowns.y > 4x -4 Thank you very much. I am not sure what a > is
1. 1 answer
2. 528 views
Graph the line through the given point and with the given slope.(3,5); m = 1/2 Thank you
1. 1 answer
2. 433 views
ind the monthly payment for the loan. (Round your answer to the nearest cent.)Finance $450,000 for a warehouse with a 7.50%
1. 1 answer
2. 563 views
If f(x) = x − 7, find the following.f(13) f(-6) f(p) Thank you, you guys do not know what it means to me that I have a site
1. 1 answer
2. 391 views
Evaluate the given expressions (to two decimal places).2(90)+5(80)+10(70)+3(60)+3(50)+4(40)= than divide by 25 mean =70.8 median
1. 4 answers
2. 609 views
Evaluate the given expressions (to two decimal places).log 1.69 =123 log 2^512 = .09 log 2^1 = 0 log o.o46 =1.34 Thank you
1. 1 answer
2. 711 views
Tell what the output value is for the function machine for the given values.log 16.9=1.23 log2^152=9 log2^1=0 log0.046=1.34
1. 1 answer
2. 487 views
I need help with this question;A printer can print 40 pages in 1.6 minutes. a. Write and solve a proportion to find the number
1. 2 answers
2. 1,092 views
I read the book but i don't understand this question:Consider the events of Shakespeare’s Macbeth and the fates of the title
1. 2 answers
2. 725 views
I need help understanding this question:How does Kurt Vonnegut address the concept of equality differently in “Harrison
1. 3 answers
2. 700 views
Find three ordered pairs that satisfy the equation.y=x+4 x,y= (0, answer 0,4 x,y= (1, answer 1,5 x,y= (2, answer 2,1 Thank you
1. 1 answer
2. 490 views
If f(x) = x2 + 3, find the following.f(-2) 9 f(3/2)== not sure f(b) not sure Thank you
1. 1 answer
2. 425 views
find the followingif x =x^2+2 f(3/2) 4.24 f(b) 0 did I do this right Thank you
1. 2 answers
2. 402 views
Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems
1. 2 answers
2. 1,740 views
Solve the system by graphing. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.)3
1. 1 answer
2. 924 views
Why do many historians regard the printing press as the most important invention of the past millennium?
1. 5 answers
2. 3,276 views
Make a box and whisker plot with the following statement:The data show the ages of 13 people attending a dinner party.37, 42,
1. 0 answers
2. 617 views
What is the first quartile and third quartile of the following numbers:37,42,44, 47,49, 51,53, 54,55, 57,61, 63
1. 2 answers
2. 521 views
Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems
1. 1 answer
2. 766 views
find the followingif x =x^2+2 f(3/2) 4.24 f(b) 0 Thank you
1. 0 answers
2. 311 views
Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems
1. 0 answers
2. 672 views
if f(x)=x^2+2, find the following, f(-3), f(3/2), f(b)Thank you
1. 2 answers
2. 349 views
Solve the system by graphing. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.){
1. 1 answer
2. 892 views
Tell what the output value is for the function machine for the given values.x^2+x^2+1 a)5 b)9 c)-7 d)1/2 e)t
1. 2 answers
2. 702 views
Solve the system by graphing. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.)3
1. 2 answers
2. 618 views
If f(x) = x − 8, find the following.How do I find f(p) Thank you
1. 2 answers
2. 397 views
Tell what the output value is for the function machine for the given values.x down to x_____x^2 + _____X^2 +1 down to x^2 +1 It
1. 0 answers
2. 548 views
Is the following set a function?{(3, 4), (1, 2), (4, 9), (6, 15)} Thank you
1. 2 answers
2. 419 views
The monthly cost for health care for an employee and two dependents in a certain year is given in the following table.Provider
1. 2 answers
2. 655 views
Find three ordered pairs that satisfy the equation.y = 2x − 1 (x, y) = (0) (x, y) = ( 1) (x, y) = ( 2)
1. 2 answers
2. 2,377 views
A class obtained the following scores on a test.Test Score Frequency 90 2 80 5 70 10 60 3 50 3 40 2 Find the mean, the median,
1. 2 answers
2. 1,657 views
Solve the equation by finding the exact solution.I don't know if I am putting this right 3 In e = check mark over 7 and x -3 In6
1. 2 answers
2. 562 views
Write each expression in terms of common logarithms, and then give a calculator approximation (correct to four decimal places).l
1. 1 answer
2. 745 views
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 145 and a variance of 4.
1. 2 answers
2. 627 views
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 145 and a variance of 4.
1. 1 answer
2. 535 views
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 145 and a variance of 4.
1. 1 answer
2. 520 views
Karen and Wayne need to buy a refrigerator because theirs just broke. Unfortunately, their savings account is depleted, and they
1. 2 answers
2. 903 views
Write the equations in logarithmic form216=6^3 I got 0 16-(1/4)^-2 1/2 thank you very much for your help
1. 1 answer
2. 709 views
Find the range and the standard deviation (correct to two decimal places).83, 96, 100, 100, 106=divided by 5=97 I did the
1. 7 answers
2. 1,017 views
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 115 and a variance of 25.
1. 2 answers
2. 1,330 views
A class obtained the following scores on a test.Test Score TestScore Frequency 90 1 80 6 70 10 60 3 50 2 40 3 What I did was
1. 1 answer
2. 592 views
Find the range and the standard deviation (correct to two decimal places).83,96,100,100,103 find the range and standard
1. 3 answers
2. 2,431 views
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We
1. 1 answer
2. 1,959 views
If f(x) = x − 7, find the following.a f(13) b f(-6) c f(p)
1. 4 answers
2. 384 views
Find the number of decibels for the power of the sound given. Round to the nearest decibel.A rocket engine, 2.42 cross 10−5
1. 1 answer
2. 466 views
Find the number of decibels for the power of the sound given. Round to the nearest decibel.A rocket engine, 2.42 cross 10−5
1. 2 answers
2. 608 views
Solve the equations by finding the exact solution.a 3= x -3 what is x b In e = In like a check mark 7 with a 6 under the 7 -3 In
1. 2 answers
2. 453 views
What is the expectation for the $1 bets on a U.S. roulette wheel? If the bet is a three number bet. Round to the nearest cent.Th
1. 0 answers
2. 1,136 views
The diameter of an electric cable is normally distributed, with a mean of 0.8 inch and a standard deviation of 0.03 inch. What
1. 1 answer
2. 673 views
An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will
1. 4 answers
2. 2,654 views
Last semester a certain professor gave 24 A's out of 237 grades. What is the probability that student received an A. round two
1. 1 answer
2. 556 views
A club with 33 members is to select five officers president, vice president, sec, treasurer and historian. In how many way can
1. 1 answer
2. 840 views
Suppose that in a particular game two dice are tossed, and various amounts are paid according to the outcome. Find the requested
1. 2 answers
2. 1,462 views
Choose a natural number between 1 and 100, inclusive. What is the probability that the number chosen is not a multiple of 5?
1. 2 answers
2. 2,804 views
Find the requested probability.P(A) if P(A) = 0.6. the first A has a line over it. than the P (A) line over it Thank you for you
1. 2 answers
2. 1,691 views
A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen
1. 3 answers
2. 3,374 views
Three fair coins are tossed. What is the probability that at least one is a head? (Enter the probability as a fraction.) I came
1. 1 answer
2. 1,656 views
Suppose that the odds in favor are 12 to 1 that a man will be bald by the time he is 60. State this as a probability. (Enter the
1. 4 answers
2. 1,867 views
An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will
1. 1 answer
2. 687 views
A single card is selected from an ordinary deck of cards. The sample space is shown in the figure below. Find the probabilities.
1. 1 answer
2. 850 views
A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen
1. 1 answer
2. 645 views
What is the probability of getting a license plate that has a repeated letter or digit if you live in a state in which license
1. 1 answer
2. 1,221 views
What is the expectation for the $1 bets on a U.S. roulette wheel? See the figure. (Round your answer to the nearest cent.)Three-
1. 2 answers
2. 5,044 views
Suppose that you toss a coin and roll a die. What is the probability of obtaining tails or a six? (Enter the probability as a
1. 1 answer
2. 1,036 views
A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen
1. 1 answer
2. 630 views
A state's license plates consist of four letters followed by three numerals, and 246 letter arrangements are not allowed. How
1. 1 answer
2. 666 views
Last semester, a certain professor gave 24 As out of 237 grades. If one of the professor's students from last semester were
1. 1 answer
2. 589 views
An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will
1. 2 answers
2. 634 views
Find the requested probability.P(A) if P(A) = 0.7 Thank you and have a great Holiday weekend
1. 2 answers
2. 1,232 views