2.38 Baggage fees:  An airline charges the following baggage fees: $20 for the first bag and $35 for the second. Suppose 50% of passengers have no checked luggage, 35% have only one piece of checked luggage and 15% have two pieces. We suppose a negligible portion of people check more than two bags. a) The average baggage-related revenue per passenger is: $  (please round to the nearest cent) b) The standard deviation of baggage-related revenue is: $  (please round to the nearest cent) c) About how much revenue should the airline expect for a flight of 130 passengers? $  (please round to the nearest dollar)

In the 1992 presidential election, Alaska's 40 election districts averaged 1993 votes per district for President Clinton. The standard deviation was 584. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places. a. What is the distribution of X? X ~ N( b. Is 1993 a population mean or a sample mean? Select an answer v C. Find the probability that a randomly selected district had fewer than 2053 votes for President Clinton. d. Find the probability that a randomly selected district had between 2074 and 2208 votes for President Clinton. e. Find the 95th percentile for votes for President Clinton. Round your answer to the nearest whole number.

A congressperson wants to come up with a single value to describe the prices of homes in their district. However, their district consists of a few homes that are extremely expensive compared to the others. Which descriptive statistic should they use? a. Range b. Mode c. Median d. Mean

If some data is symmetrical and unimodal, and the mean and standard deviation are 230 and 40 respectively: a)How much of the data lies between 190 and 270 b)How much lies between 150 and 230 c)How much lies between 190 and 310

If the mean speed for a major league fast ball is 90 miles per hour and the standard deviation is 5 miles per hour, what would the standardized score be for a pitch that is 97 miles per hour? O 0.4 4.0 1.4 O 1.0

The histogram (click the attacthed photo to view) shows the distribution of hurricanes that have hit a country from 1851 through​ 2015, where 1 is the weakest level and 5 is the strongest level.   A) The mean is? B) The variance is? C)The standard deviation is?

14. The range is defined as the: a. variability of the data with reference to extreme scores. b. the variability of the data with reference to the mean. c. variability of the data in terms of how many subjects achieved each value of the variable. d. SS/n

Ms. Lorraine Finch, a fifth grade teacher has a large class of 50 students for the 2018 - 2019 school year. After giving a reading comprehension test, Ms. Finch decided to do a brief statistical analysis. A frequency distribution of the results is presented below. a. Fill in the missing pa rts of Ms. Finch’s frequency distribution. Do any necessary scrap work in the space next to the table. b. Construct a histogram of the frequency distribution.   c Is the distribution of test scores normal? Explain.   Score   Frequency   Relative Frequency 84         2                    0.04 85         5                     0.1 86                                 0.08 87       8                       0.16 88       10                      89        90      5                         0.1 91       4                         0.08 92       3                         0.06