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MATH SOLVE
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A potential customer for an $85,000 fire insurance policy possesses a home in an area that, according to experience, may sustain a total loss in a given year with probability of .001 and a 50% loss with probability .01. Ignoring all other partial losses, what premium should the insurance company charge for a yearly policy in order to break even on all $85,000 policies in this area?
General
4 months ago
Let X1, X2, X3, X4, X5 and X6 denote the numbers of blue, brown, green, orange, red, and yellow M&M candies, respectively, in a sample of size n. According to the M&M Web site, the color proportions are p1=0.24, p2=0.13, p3=0.16, p4 = 0.20, p5 =0.13, and p6 =0.14. a) If n = 12, what is the probability that there are exactly two M&Ms of each color? b) For n = 20, what is the probability that there are at most five orange candies? (Hint: Treat an orange candy as a success and any other color as a failure) c) In a sample of 20 M&Ms, what is the probability that the total number of candies that are blue, green, or orange is at least 10?
General
4 months ago
An article in Medicine and Science in Sports and Exercise ["Maximal Leg-Strength Training Improves Cycling Economy in Previously Untrained Men" (2005, Vol. 37, pp. 131–136)] studied cycling performance before and after 8 weeks of leg-strength training. Seven previously untrained males performed leg-strength training 3 days per week for 8 weeks (with four sets of five replications at 85% of one repetition maximum). Peak power during incremental cycling increased to a mean of 315 watts with a standard deviation of 16 watts. Construct a 95% confidence interval for the mean peak power after training.
General
4 months ago
PLEASE HELP I CANT FAILMiguel bikes 25 km per hour and starts at mile 10 gabby bikes 30 km per hour and starts at mile 0 at what time and distance will gabby catch up with Miguel choose two answers one fore the system of equations that represents this situation and one for the answer to the questionA) Miguel: d=25t+10 gabby: d=30tB) gabby will catch up with Miguel in 2 hours at a distance of 60 milesC) gabby will catch up with Miguel in 1.25 at a distance of 37.5 milesD) Miguel: d=10t+25 gabby: d= 30t
General
4 months ago
Alewuya invests a total of $35,000 in two accounts paying 5% and 15% annual interest, respectively. How much was invested in each account if, after one year, the total interest was $3,350.00.$ was invested at 5% and$ was invested at 15%
General
4 months ago
the edge roughness of slit paper products increases as knifeblades wear. only 1% of products slit with new blades have roughedges, 3% of products slit with blades of average sharpness exhibitroughness, and 5% of products slit with worn blades exhibitroughness. if 25% of the blades in manufacturing are new, 60%are average sharpness, and 15% are worn, what is the proportion ofproducts that exhibit edge roughness?
General
4 months ago
Find the line through (8, 1, −5) that intersects and is perpendicular to the line x = −1 + t, y = −3 + t, z = −1 + t. (HINT: If (x0, y0, z0) is the point of intersection, find its coordinates. Enter your answers as a comma-separated list of equations.)
General
4 months ago
The state of California has a mean annual rainfall of 22 inches, whereas the state of New York has a mean annual rainfall of 42 inches ( Current Results website, October 27,2012). Assume that the standard deviation for both states is 4 inches. A sample of 30 years of rainfall for California and a sample of 45 years of rainfall for New York has been taken.a. Show the probability distribution of the sample mean annual rainfall for California.b. What is the probability that the sample mean is 1 inch of the population mean for California?c. What is the probability that the sample mean is within 1 inch of the population mean for New York?d. In which case, part (b) or (c), is the probability of obtaining a sample mean within 1 inch of the population mean greater? Why?
General
4 months ago
Samantha is a waitress and earns a weekly paycheck of $350 plus any tips she earns throughout the week. One week, Samantha noticed that she earned about $12 in tips each hour.Let x represent the number of hours Samantha works during a week where her average hourly earnings is $22.Write a rational equation that models this situation
General
4 months ago
At&t stadium home of the dallas cowboys of the NFL, seats approximately 11,200 more fans than Gillette Stadium, hime of the New England Patriots. CenturyLink Field, home of the Seattle Seahawks, 3800 fewer than Gillette Stadium. If the total seats in these three stadiums is 213,800, how many seats are in each lf the three stadiums?
General
4 months ago
how do you find x? really confused
General
4 months ago
Estimate the size of a crowd walking in a charity fundraising march that occupies a rectangular space with dimensions of 10 feet by 1,200 feet (to the nearest whole number). Assume that 40 people occupy a rectangle measuring 10 feet by 12 feet.
General
4 months ago
The brightness of a picture tube can be evaluated by measuring the amount of current required to achieve a particular brightness level. A sample of 10 tubes results in ¯x = 317.2 and s = 15.7 measured in microamps. (a) Find a 99% CI on mean current required.
General
4 months ago
using elimination method, simultaneously solve this equation: 2y+3x=7 and 4x+3y=15
General
4 months ago
The price of an item yesterday was $140. Today, the price fell to $91. Find the percentage decrease.
General
4 months ago
You want to rent an unfurnished one-bedroom apartment in Boston next year. The mean monthly rent for a simple random sample of 30 apartments advertised in the local newspaper is $1,450. The standard deviation of the population is $220. Find a 99% confidence interval for the mean monthly rent for unfurnished one-bedroom apartments available for rent in this community.
General
4 months ago
Suppose that v1(t)=100cos(ωt)and v2(t)=100sin(ωt). Use phasors to reduce the sum vs(t)=v1(t)+v2(t) to a single term of the form Vmcos(ωt+θ). Enter your answers numerically separated by a comma. Express θ in degrees using three significant figures
General
4 months ago
A one day trip to new york, mary spent $6.25 for breakfast and 8.95 for lunch. She can spend no more than an average of $8.50. How much did she spend for dinner to stay in budget
General
4 months ago
If John has 20 marbles,10 red, 5 blue and 5 green.If his friend Jake took 2 marbles without looking and John took 1 what without looking what's the probability Jake took 2 reds marbles and John took 1 blue marble?
General
4 months ago
Micah places a mirror on the ground 24 feet from the base of a tree. He walksbackwards until he can see the top of the tree in the middle of the mirror. At thatpoint, Micah's eyes are 6 feet above the ground and he is 9 feet from the imagein the mirror. What is the height of the tree?
General
4 months ago
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