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Two cards are drawn from an deck of 52 cards, without replacement. How do you find the probability that exactly one card is a spade?

What is standard deviation? Why is it called that?

Conditional probability question?

What is the minimum value of #g(x) = (x1)/(x^2+4)?# on the interval #[2,2]#?

How do you find the median of the data set 88.6, 87.8, 85.3, 89.3, 86.8, 88.3, 85.9, 89.0, 87.4?

Can I get some help please? thanks!

The probability distribution function of a discrete variable X is given by:
P(X=r) = kr, r=1,2,3,...,n,
where k is a constant. Show that #k=2/(n(n+1))# ?

A six sided die is rolled six times. What is the probability that each side appears exactly once?

How do you find ZY given #X=[(4,1), (2,6)]# and #Y=[(0,3)]# and #Z=[(1,3), (0,2)]#?

For a dataset of size 58, the sample mean was calculated to be #barx=$2.75# and the sample standard deviation is #s=$0.86#. What is the 95% confidence interval for #mu#?

How do you determine the intervals for which the function is increasing or decreasing given #f(x)=abs(x^24)#?

What is the the value of z for which the area under the normal curve to the right of z is equal to 0.76?

How do you solve #2^(8x3) = 5^(6x9)# ?

What is the difference between discrete data and continuous data? Do data ranking a TV show on a scale from 1 to 4 count as discrete or continuous?

The largest side of a right triangle is #a^2+b^2# and other side is #2ab#. What condition will make the third side to be the smallest side?

What is #2 2/3%# of 60?

Question #f4b1c

30% of the 20 people in the Math Club have blonde hair. If 3 people are selected at random from the club, what is the probability that none have blonde hair?

Which measure will be affected by an outlier the most?

How do you use the Binomial Theorem to expand #(x + 2)^4#?

How do you graph #y=(x+5)/(2x4)# using asymptotes, intercepts, end behavior?

What do you get when you evaluate #5x2# at both #0# and #–1#?

How do you simplify #\frac { \frac { x } { 10}  \frac { 5} { x } } { \frac { 1} { 5} + \frac { 1} { x } }#?

Can #y=6# be considered a function of #x#?

For the equation #4y=8x#, what is the constant of variation?

What is #lim_(xrarrtheta)(xcosthetathetacosx)/(xtheta)#?

How do you solve the inequality #x^2x12>0#?

Is #f(x)=(x^29)/(x3)# continuous at #x=3#?

#y=cot^4 2x# Find #dy/dx#?

How do you find the zeros, real and imaginary, of #y=x^2x+7# using the quadratic formula?

How do you interpret a 95% confidence interval?

What is 'z' for an 88% confidence interval?

How do you write the factor trees for 24?

How do you use a probability mass function to calculate the mean and variance of a discrete distribution?

Question #355ed

What is the probability of #X= 6# successes, using the binomial formula?

How do you solve #(x+2)/(x+1)>0#?

The heights of males in a certain country are normally distributed with a mean of 70.2 inches and a standard deviation of 4.2 inches. What is the probability that a randomly chosen male is under the height of 65 inches?

How do you prove the statement lim as x approaches 9 for #root4(9x) = 0# using the epsilon and delta definition?

Suppose y varies directly with x and y=24 when x=8. What is the value of when x=10?

How to answer these questions ?

If #a+c=2b# and #ab+cd+ad=3bc#, how do I show that #a,b,c,d# are in arithmetic progression?

How do I rewrite the confidence interval (0.0268, 0.133) in the form of #hatp  E < p < hatp + E#?

Are all rational numbers integers?

Is #f(x) = x^464# an odd function or an even function?

After rolling four dice, what is the probability that all four dice show different numbers?

Solve #sin2x = cos2x#?

A player's batting average in softball is .400. What is the probability he gets 3 hits in his next 5 atbats?

How do you find the slope that is perpendicular to the line #2x +3y = 5#?

How do you use long division to divide #(x^42x^34x^2+2x+3) : (x^2+2x+1)#?

How many ways can 4 students be arranged in a row?

How do you solve #x^2<=4x# using a sign chart?

How many ways can a committee of 3 men and 2 women be chosen from a pool of 8 men and 7 women?

What wavelength would a green glass have?

Question #1cd46

What can a Poisson regression be used to estimate?

How do you prove #sin^2x + cos^2x = 1#?

How do you find the remaining side of a #30^circ60^circ90^circ# triangle if the side opposite #60^circ# is 6?

How do you determine the value(s) of k such that the system of linear equations has the indicated number of solutions: An infinite number of solutionsfor 4x + ky = 6 and kx +y = 3?

Human proofreaders catch 70% of word errors. If a single essay contains 10 word errors, what is the distribution of the number of errors caught in this essay?

Is 18 prime or composite?

Question #19be3

How do you find the indefinite integral of #int 2^(sinx)cosx#?

What is the geometric sequence for #3, 6, 12, 24, ...#?

#d/dx log_x x#?

Quick Delivery charges $0.10 per cubic inch. How much will it cost to send a package 3 cm wide, 8 cm long, and 2 cm deep?

What is the derivative of #x^sin(x)#?

How do you simplify #tan^2x  (cot^2x + 1)/cot^2x#?

How do you solve #(x4)(x+3)<0# using a sign chart?

For these numbers: #2,2,0,5,1,4,1,3,0,0,1,4,4,0,1,4,3,4,2#, what is the (a) mean, (b) median, (c) variance and (d) standard deviation?

ABCD is a trep. with AB//DC and AD = BC. If AD is parallel to CE and angle A is 70 degrees.Find all the angles ? Diagram is given below.

If #X# is #"Normal"(μ = 81.2, σ = 12.4),# what is the 16th percentile of this distribution?

A random sample of 90 observations produced a mean x̄ = 25.9 and a standard deviation s = 2.7. How do you find a 95% confidence interval for the population mean μ?

How do you find #dy/dx# by implicit differentiation given #2x^23y^2=4#?

A coin is tossed 12 times. What is the probability of getting exactly 6 tails?

How much money will you have if you started with $1200 and put it in an account that earned 7.3% every year for 10 years?

Find the constraints, make a plot, find the maximum number of attendants, and compute the minimum cost solution for the problem below? Also, show that #4x+3y<=20# and #99x + 104y <= 600# are two of the constraints.

How do you write 2/5 in fraction?

Which of these is an example of a linear equation?

A process for making plate glass produces small bubbles (imperfections) scattered at random in the glass, at an average rate of 4 small bubbles per
#10m^2#. Consider glass pieces with dimensions 2.5m x 2.0m.?

What is the probability that if you threw 20 darts, that 8 of them would hit the same area?

Probability question?

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