Calculus and Above

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Calculus Help, dimensions of the rectangle of largest area

Calculus Help, dimensions of the rectangle of largest area that can be inscribed in the right triangle shown in the accompanying figure.… read more

Let X be a random variable with the following probability

Let X be a random variable with the following probability distribution.Value x of X P(X=x) 30 0.55 40 0.20 50 0.10 60 0.05 70 0.05 80 0.05(a) Find the expectation E(X) of X E(X)= . (b) Find the varian… read more

It has been claimed that at UCLA at least 40% of the

It has been claimed that at UCLA at least 40% of the students live on campus. In a random sample of 250 students, 90 were found to live on campus. Does the evidence support the claim at = .01?… read more

What is the volume and total area of a rectangular face

What is the volume and total area of a rectangular face when its lengths are a = 40 cm, b = 60 cm, and c = 35 cm?… read more

It has been claimed that at UCLA at least 40% of the

It has been claimed that at UCLA at least 40% of the students live on campus. In a random sample of 250 students, 90 were found to live on campus. Does the evidence support the claim at = .01? A) Crit… read more

It has been claimed that at UCLA at least 40% of the

It has been claimed that at UCLA at least 40% of the students live on campus. In a random sample of 250 students, 90 were found to live on campus. Does the evidence support the claim at = .01?A) Criti… read more

Points A and are on opposite sides of a lake. Another point,

Points A and B are on opposite sides of a lake. Another point, point C is 80.5 metres from A. The measure of angle BAC is 74°40', and the measure of angle ACB is determined to be 40°40'.Find the dista… read more

Just answers please A car company states that the mean mpg

just answers please A car company states that the mean mpg of their newest model is 40. You want to prove this claim is wrong. During your analysis, you find that a random sample of thirty of these ca… read more

At the start of a year, company XYZ's stock is $40 per

At the start of a year, company XYZ's stock is $40 per share. At the end, the company's stock is $60 per share. What was the stock price's rate of return (percent increase)?… read more

Amazon has to make a decision if they want a Christmas item

Amazon has to make a decision if they want a Christmas item for which demand can be high, medium, or low. Amazon can purchase 1 shipment, 2 shipments, or 3 shipments of the item. Profit projections in… read more

When 196 workers aged 18-25 were asked how many hours they

When 196 workers aged 18-25 were asked how many hours they worked in the previous week, the mean was 37.8 with a standard deviation of 13.4. Does this suggest that the population mean work week for th… read more

Researchers conducted a study of variety in exercise workouts.

Researchers conducted a study of variety in exercise workouts. A sample of 120 men and women were randomly divided into three groups, with 40 people per group. Group 1 members varied their exercise ro… read more

Can you answer these statistic questions? Question 1 Find

Can you answer these statistic questions? Question 1 Find the probability that you toss a pair of dice and the sum is 7. Answer 1/18 1/9 5/36 6/36 20 points Question 2 Find the chance that you toss a … read more

find the dimensions of a cuboid 6m high and with a volume 240cubic

find the dimensions of a cuboid 6m high and with a volume 240cubic metres formed to provide a minimum surface area… read more

Find the dimensions of a cuboid 6m high with volume 240 cubic

Find the dimensions of a cuboid 6m high with volume 240 cubic metres formed to provide a minimum surface area… read more

In a study 40 patients are given a treatment and 40 patients

In a study 40 patients are given a treatment and 40 patients are not given a treatment. The pain scale used is 0-100. Patients given the treatment rate the pain at a mean of 12.0 with a standard devia… read more

P(A1) = .20, P(A2) = .40, and P(A2) = .40. P(B1|A2) = .25.

P(A1) = .20, P(A2) = .40, and P(A2) = .40. P(B1|A2) = .25. P(B1|A2) = .05, and P(B1|A3) = .10. Use Bayes' theorem to determine P(A3 | B1).… read more

A coffeehouse wishes to see whether customers have any preference

A coffeehouse wishes to see whether customers have any preference among five different roasts of coffee. A sample of 200 customers provided the data shown in the table below. Test the claim that the c… read more

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