Historical data show that customers who download music from a popular Web service spend approximately $20 per month with a standard deviation of $4. 1. Find the probability that a customer will spend more than $15 per month. 2. If the company samples 100 customers, find the mean and standard deviation of the number who spend more than $15 per month. 3. What is the probability that more than 40% of them will spend more than $15 per month?   Tips: Use normal distribution to model sales.

Using the image answer the following. Find the probability that a randomly selected household in North America uses between 69 and 161 gallons of water per day. Show work

Not everyone pays the same price for the same model of a car. The figure illustrates a normal distribution for the prices paid for a particular model of a new car. The mean is $20,000 and the standard deviation is $2000. 99.7% 95% 68% Use the 68-95-99.7 Rule to find what percentage of buyers paid between $16,000 and $20,000. 14 16 18 20 22 24 26 Price of a Model of a New Car (Thousands) The percentage of buyers who paid between $16,000 and $20,000 is (Type an exact answer.) %. w esc 딤 F3 DOO F1 F2 O00 F4 %24 %2#3 0 Number of Car Buyers

List and describe at least three characteristics of the normal distribution.Find an example of something that you would expect to be normally distributed and share it. Explain why you think it it normally distributed.Find an example of something that you would not expect to be normally distributed and share it. Explain why you think it would not be normally distributed.Find a web-based resource that is helpful in understanding the Normal Distribution.

What percentage of buyers paid between $14,500 and $16,000?

The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $140.What is the approximate percentage of buyers who paid less than $1320? What is the approximate percentage of buyers who paid less than $1180?

The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1600 and the standard deviation is $135.What is the approximate percentage of buyers who paid between $1600 and $2005?%What is the approximate percentage of buyers who paid less than $1330?%What is the approximate percentage of buyers who paid between $1465 and $1600? %

Dashboard Question A donut shop that specializes in unique donuts made from potatoes wants to learn more about their business costs. Past data reveals that the cost for fifty pounds of potatoes has a mean of $75 with standard deviation $13. The normal distribution for the population is shown by the dotted black line. The donut shop plans to take a random sample of 31 such fifty pound bags of potatoes and will calculate the mean cost of the sample to compare to the known cost. Compute the mean and standard deviation of the sampling distribution of sample means for a sample of size 31. Round your answers to the nearest tenth. Show your answer by moving the two draggable points to build the sampling distribution. Sorry, that's incorrect. Try again? -0-2- -0-15- -0-1- -0:05- 3 60 The population has a normal distribution- with mean 75 and standard deviation 13. 65 80 F3 4 M= = 75 X 70 F4 75 % 5 F5 80 < 6 85 S F6 90 & 7 FEEDBACK F7 8 DII F8 VIEW ANSWER 8: 7.1.1 Central Limit Theorem for M 9…

Not everyone pays the same price for the same model of a car. The figure illustrates a normal distribution for the prices paid for a particular model of a new car. The mean is $22,000 and the standard deviation is $1000. Use the 68-95-99.7 Rule to find what percentage of buyers paid between $20,000 and $22,000. Number of Car Buyers 99.7% -95% 68% 19 20 24 Price of a Model of a New Car (Thousands) The percentage of buyers who paid between $20,000 and $22,000 is (Type an exact answer.) %. 25 C

z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?