Basic Math question and answers for September 05, 2024
- Q Clarissa Byrne purchased a $399.99 electronic organizer, $78.94 in office supplies, and a $98.95 office chair for work. What is the (a) total selling price and (b) total sales tax...
- Q The mean height of women in a country (ages 20-29) is 63.8 inches. A random sample of 65 women in this age group is selected. What is the probability that...
- Q Each student's score on the final exam in Mr. Shenton's class58, 72, 74, 92, 84, 40, 74, 81, 76, 832) What was the minimum score earned onMr. Shenton's final exam?(a)...
- Q Two methods are being considered to increase production of a paint manufacturing process. In a random sample of 52 days, the mean daily production using the first method was 645...
- Q A commonly cited standard for one-way length (duration) of school bus rides for elementary schoolchildren is 30 minutes. A local government office in a rural area randomly samples 100 elementaryschool...
- Q On page 2, question 2, which scatterplot has a negative direction?scatterplot 2scatterplot 3scatterplot 1
- Q Homework: Ch 5At one time, a well-known restaurant chain sold cherry pies. A statistics professor enlisted the help of one of his classes to gather data on the number of...
- Q Below is the five-number summary for 136 hikers who recently completed the John Muir Trail (JMT). The variable is the amount of time to complete the 212-mile hike from Yosemite...
- Q In a survey, 23 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30 and standard deviation...
- Q The Boston marathon is a very competitive race. To qualify for the Boston marathon, male runners must have completed a marathon in less than 3 hours and 5 minutes within...
- Q In 2009, DuPont Automotive reported that 18% of cars in North America were white in color.We are interested in the proportion of white cars in a random sample of 200...
- Q 1. The life expectancy and schooling data for 173 nations relating the response variable y life ex-pectancy (in years) to the explanatory variable x- mean number of years in school,...
- Q Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, are able to absorb and accumulate cadmium at high concentrations. Some governments have a safety limit for cadmium in dry...
- Q Peaches at the local fruit stand have a mean weight of 180 g, with a standard deviation of 17 g.(a) The center 68% of the peach weights are between which...
- Q Use a(t)= -9.8 meters per second per second as the acceleration due to gravity. (Neglect air resistance.)A canyon is 1200 meters deep at its deepest point. A rock is dropped...
- Q Evelynn has a home that was recently appraised for $128,000, and the balance on the existing mortgage is $80,128. If a bank is willing to loan up to 67% of...
- Q Does this diet help? A group of 74 people enrolled in a weight-loss program that involved adhering to a special diet and to a daily exercise program. After sixmonths, their...
- Q A coin is tossed three times. Write the sample space as a set of outcomes.Separate outcomes with commas. Record each outcome as a sequence such as HHT.Let A be the...
- Q Cheese production in a country is currently growing at a rate of 3% per year. The equation y=72(1.03)* models the cheese production in the country from 2003 to 2009. In...
- Q College tuition: A simple random sample of 35 colleges and universities in the United States has a mean tuition of $19,400 with a standard deviation of Construct an 80% confidence...
- Q In an albatross colony the wingspan of the birds is approximately normally distributed with an average wingspan of 3.07 metres and standard deviation 0.48 metres. In this colony, 75% of...
- Q A company manufactures steel tubes with an average circumference of 12.5 cm. The maximum divergence allowed is 0.15 cm. The circumference of the tubes follow a normal distribution with standard...
- Q The number of sweets in a bag are normally distributed with mean 48 and standard deviation 4. What percentage of bags selected at random contain between 45 and 55 sweets?...
- Q The lifespan of a mouse is normally distributed with mean 1 year and standard deviation 0.2 years. Ingrid knows that 35% of mice live longer than x years. Find the...
- Q The mean monthly rent of students at Oxnard University is $810 with a standard deviation of $235.(a) John's rent is $1,370. What is his standardized z-score? (Round your answer to...
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