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99 POINTS!Find the standard deviation for the binomial distribution.n=21; p=0.2A) 1.83B) 5.95C) -0.58D) 5.10
General
1 month ago
How does the value of 30,000 x (4 x 3) compare to the value of 300 x (4 x 3)?
General
1 month ago
HELP I NEED YOUR HELP MATH ONE PROBLEM 10 POINTS HELP
General
1 month ago
Line 1 passes through the points -2,7 and 3,3. Line 2 passes through the points 5,1 and 9,1. Find the slope of each line. Which line has the greater slope?
General
1 month ago
The 20 colleges of interest to a high school senior include 8 that are expensive ( tuition more than 20,000 per year), 8 that are far from home( more than 200 miles away), and 7 that are both expensive and far from home. If the student decides to select a college that is not expensive and within 200 miles from home, how many selections are possible?
General
1 month ago
4 MATH QUESTIONS AND YOU WILL GET 20 POINTS PLEASE PLEASE HELP I NEED THIS
General
1 month ago
Which set of equations could be parametric equations?y= x and y= 3xy= x + 1 and y= 3x2x= t and y=3tx= 3y and y= x+1
General
1 month ago
The area of a rectangle is 375 in? The ratio of the length to the width is 5:3. Find the length and the width The length of the rectangle isin
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1 month ago
Write a linear expression in simplest form to represent total field goal points scored in the first two quarters.1st quarter= 2x-62nd quarter = x+2
General
1 month ago
A hot air balloon is tethered to a 100-meter rope with no slack. The balloon is 70 meters above the ground. What is the angle of elevation? (to the nearest tenth) A) 34.9° B) 43.5° C) 44.4° D) 45.6°
General
1 month ago
In an agricultural study, the average amount of corn yield is normally distributed with a mean of 185.2 bushels of corn per acre, with a standard deviation of 23.5 bushels of corn. If a study included 1100 acres, about how many would be expected to yield more than 190 bushels of corn per acre?A. 639 acresB. 461 acresC. 419 acresD. 503 acres
General
1 month ago
Incline mats, or triangle mats, are offered with different levels of incline to help gymnasts learn basic moves. As the name may suggest, two sides of the mat are right triangles. If the height of the mat is 28 inches shorter than the length of the mat and the hypotenuse is 8 inches longer than the length of the mat, what is the length of the mat?
General
1 month ago
An inspector inspects large truckloads of potatoes to determine the proportion p in the shipment with major defects prior to using the potatoes to make potato chips. If there is clear evidence that this proportion is less than 0.10, she will accept the shipment. To reach a decision, she will test the hypotheses H0: p = 0.10, Ha: p < 0.10. To do so, she selects a simple random sample of 150 potatoes from the more than 3000 potatoes on the truck. Only eight of the potatoes sampled are found to have major defects. What is the value of the large-sample z test statistic?
General
1 month ago
QUESTION 1 A researcher compares differences in positivity between participants in a low-, middle-, or upper-middle-class family. If she observes 15 participants in each group, then what are the degrees of freedom for the one-way between-subjects ANOVA?
General
1 month ago
David is shoveling driveways to raise money for his SpringBreak trip. Each driveway he shovels, he earns $15. After shoveling 12 driveways, David has $243 saved for his trip. Write an equation to represent the amount David has saved as a function of the number of driveways he has shoveled.
General
1 month ago
(5,3) and (-2,-3) slope intercept form
General
1 month ago
Michael earnsMichael earns $9 per hour. He works 28 hours each week. How much does he earn in 6 weeks
General
1 month ago
Seven thousand lottery tickets are sold for $5 each. One ticket will win $2,000, two tickets will win $750 each, and five tickets will win $100 each. Let X denote the net gain from the purchase of a randomly selected ticket. a. Construct the probability distribution of X. b. Compute the expected value E(X) of X. Interpret its meaning. c. Compute the standard deviation σ of X.
General
1 month ago
An open-topped glass aquarium with a square base is designed to hold ~62.5~ 62.5 space, 62, point, 5, space cubic feet of water. What is the minimum possible exterior surface area of the aquarium?
General
1 month ago
For each cost function (given in dollars), find (a) the cost,average cost, and marginal cost at a production level of 1000units; (b) the production level that will minimize the averagecost; and c) the minimum average cost.C(x)= 16,000x + 200x+ 4x3/2
General
1 month ago
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