Basic Math question and answers for September 02, 2024
- Q A population is initially 2500 (t=0) andgrows at an annual continuous rate of5%.Another population (also growingexponentially) grows from 2000 in"year 3" to 5000 in "year 15.Show these populations will be...
- Q According to the Center for Disease Control (CDC), 46.4% of Americans get a flu shot each season. Round your answers to 4 decimal places.a) What is the probability that 6...
- Q A man starts walking north at 4 ft/s from a point P. Five min-utes later a woman starts walking south at 5 ft/s from a point500 ft due east of...
- Q Test the claim that the proportion of people who own cats is significantly different than 90% at the 0.05 significance level.Based on a sample of 800 people, 97% owned catsThe...
- Q 10. [-/3 Points] DETAILSSmitley and Davis studied the changes in gypsy moth egg mass density over one generation as a function of the initial egg mass density in a control...
- Q 7. Matilda recently took a statistics quiz inher math class. In one question, 45 of900 visitors at a local craft show weresurveyed about the cost of admission to theshow. Matilda...
- Q 0512-32. Josh bought 800 plastic whistles to give away to the kids at a street fair. Some of the whistles were smalland cost $0.50 each. The larger whistles cost $0.75....
- Q 19 Twin brothers Ricky and Robbie each took a college entrance exam. Ricky took the SAT which had a mean of 1000 with a Standard Deviation of 200 while Robbie...
- Q The Erasmus program helps facilitate European students studying in another European country. It is claimed 20% of people who participate in Erasmus marry a person they meet during that time....
- Q Another home business has an average income of $1.200.00 per month with a standard deviation of $100.00. If the income in a given month is $1,030.00, what z-score corresponds to...
- Q How many gallons of a 60% antifreeze solution must be mixed with 70 gallons of 20% antifreeze to get a mixture that is 50% antifreeze? Use the six-step method.
- Q In a state's lottery, you can bet $1 by selecting three digits, each between 0 and 9 inclusive. If the same three numbers are drawn in the same order, you...
- Q Alexis and Adriana began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Alexis took a test in...
- Q Suppose that a recent poll found that 66% of adults believe that the overall state of moral values is poor. Complete parts (a) through (b).(a) For 300 randomly selected adults,...
- Q There were 2430 Major League Baseball games played in 2009, and the home team won the game in 53% of the games. If we consider the games played in 2009...
- Q Six candidates, Sophia, Mark, John, Jenny, Mike and Sky were nominated for Chairman position in an organization. After the polls close, ranked ballots were tallied, and the results are summarized...
- Q For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 20 students, and the distribution of total study...
- Q The Environmental Protection agency requires that the exhaust of each model of motor vehicle be tested for the level of several pollutants. The level of oxides of nitrogen (NOX) in...
- Q On average, a U.S. smartphone owner between the ages of 18 and 24 sends and receives a total of 3853 text messages per month. The number sent is 191 more...
- Q Clyde Cement wants to analyze a shipment of bags of cement. He knows the weight of the bags is normally distributed so he can use the standard normal distribution. He...
- Q A a population shrinks from its initial level of 22,000 at a continuous decay rate of 7.5% per year.(a) Find a formula for P(t), the population in t years.P(t)=(b) By...
- Q The mean speed of vehicles along a stretch of highway is 56 mph with a standard deviation of 4 mph. You measure the speed of three cars traveling along this...
- Q Determine whether you can use the normal distribution to approximate the binomial distribution. If you can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If...
- Q Overall, the number of work-hours involved in the festival preparation is normally distributed around 20 hours with a standard deviation of 5 hours. a) What's the probability that the mean...
- Q A poll is given, showing 30% are in favor of a new building project. If 7 people are chosen at random, what is the probability that exactly 2 of them...
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