05/20/22

What is H’(0) equal to

Please helpppppppp

Compute Δy/Δx for the interval [3,4], where y=3x−3. (Use decimal notation. Give your answer to three decimal places.) Δy/Δx= (decimals) What is the instantaneous rate of change of y with respect... more

introduction to stats

n a Poisson distribution, μ = 0.34. (Round the final answers to 4 decimal places.)  a. What is the probability that x = 0? Probability          ? b. What is the probability that x >... more

02/17/20

Expand: log base 4 square root x

How do you interpret a Wilcoxon Signed Ranks Test

I need to understand what the meaning of a negative z value is. I carried out a study on chatbot personality using Likert type items and found that the z-value for the paired test of... more

06/24/19

P(-2.53 < z < 2.43)

solution of the inequality

–3 < 2x + 1 < 5 I don't understand how it equals to 0?

06/23/19

The Standard Normal Distribution

For a standard normal distribution, given:P(z < c) = 0.4027Find c.

06/23/19

The Standard Normal Distribution

For a standard normal distribution, find:P(-1.01 < z < 1.31)

06/14/19

Find the mean of this probability distribution. Round your answer to one decimal place

x P(x) 0 0.25 1 0.05 2 0.2 3 0.5 Find the mean of this probability distribution. Round your answer to one decimal place.I got 1.95 and it was wrong

HELP Plz help with math - completely lost

In triangle ABC, if ∠A = 120°, a = 8, and b = 3, then ∠B =

Find an equation of the line having the specific slope and containing the indicated point. Write your final answer in slope-intercept form. M=2,(1,-4)

The answer is y=2x-6, but for the life of me, I don't know how they got that answer.

06/07/19

Calculus Homework

Given revenue and cost functions R(q)=80q−0.5q^2 C(q)=14q+600​, find the maximum revenue that can be earned by selling this product.The maximum revenue is ..????

how do i solve 4sec(x)+8=0

I know i have to isolate the variable, and when i do that i get sec(x)= -2 but i dont know where to go from there.

06/06/19

How do I prove that p (A∩B) = p(A) p(B)?

06/01/19

How to determine if Standard Deviation is high/low?

I have derived the following response time data for a performance test I am running: Min - 8sec Max - 284sec Average - 28sec Standard Deviation - 27sec What does the standard deviation say about... more

05/31/19

How to calculate the covariance matrix?

I tried searching a lot on the net and got the following sources: http://stattrek.com/matrix-algebra/covariance-matrix.aspx http://www.itl.nist.gov/div898/handbook/pmc/section5/pmc541.htm The... more

05/29/19

stats help!! pls!!

A clothing business finds there is a linear relationship between the number of shirts,n,it can sell and the price,p, it can charge per shirt. In particular, historical data shows that 3000 shirts... more

Solve the system: y = x^2 – 7, y = x - 7

Find the minimum sample size you will need if you ant to be within 2% of the population proportion?

A study shows that 27% of Americans say chocolate is their favorite ice cream flavor. You want to estimate, with 95% confidence, the true proportion of U>S> adults who say chocolate is their... more

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