BUSI 230 and MATH 201 Connect Exercises 3.1-3.3 week 2 answers complete solutions

Question 1

Find the mean, median, and mode for the following data set.

(a) Find the mean. Round your answer to one decimal place, if necessary.

(b) Find the median. Round your answer to one decimal place, if necessary.

(c) Find the mode(s). If there is more than one, separate them with commas.

Question 2

Approximate the mean for the following data set. Round your answer to one decimal place.

Question 3

Hamburgers: The number of calories in a sample of hamburgers from six fast food restaurants are

(a) Find the mean number of calories. Round your answer to one decimal place.

(b) Find the median number of calories.

Question 4

Great swimmer: In the 2008 Olympic Games, Michael Phelps won eight gold medals in swimming. Following are some of the events he won, along with his margin of victory, in seconds.

(a) Find the mean margin of victory. Round your answer to three decimal places.

(b) Find the median margin of victory.

Question 5

Beer: The following table presents the number of active breweries for samples of states located east and west of the Mississippi River.

(a) Find the mean number of breweries for states east of the Mississippi. Round your answer to one decimal place, if necessary.

Question 6

Don't drink and drive: A highway safety council reported that there were 3992 fatalities among drivers in auto accidents in a particular year. Following is a frequency distribution of their ages. Approximate the mean age. Round your answer to one decimal place.

Question 7

Read any good books lately? The following data represent the responses of 24 library patrons when asked about their favorite type of book. Which type of book is the mode?

Question 8

What's the score? Jermaine has entered a bowling tournament. To prepare, he bowls five games each day and writes down the score of each game, along with the mean of five scores. He is looking at the scores from one day last week and finds that one of the numbers has accidentally been erased.

Question 9

Find the sample variance and the standard deviation for the following sample. Round the answers to at least two decimal places as needed.

Question 10

Find the population variance and standard deviation for the following population. Round the answers to at least one decimal place.

Question 11

Sports car or convertible? The following table presents the fuel efficiency, in miles per gallon, for a sample of convertibles and a sample of sports cars.

(a) Find the sample standard deviation of the mileage for the sample of convertibles. Round the answer to at least one decimal place.

(b) Find the sample standard deviation of the mileage for the sample of sports cars. Round the answer to at least one decimal place.

Question 12

House prices: The following table presents prices, in thousands of dollars, of single-family homes for some of the largest metropolitan areas in the United States for the first quarter of 2012 and the first quarter of 2013.

(a) Find the population standard deviation for 2012. Round the answer to at least two decimal places.

(b) Find the population standard deviation for 2013. Round the answer to at least two decimal places.