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For each of the following datasets, explain whether you would expect the mean or the median of the observations to be higher:
a. In a rural farming community, for each household the number of children is measured.
b. For all households in a large city, yearly household income is measured.
c. For all students in a high school (not just those who were employed), income earned in a job outside the home in the past month is measured.
d. For the coins in someone's pocket that has one-third pennies, one-third nickels, and one-third quarters, the monetary value of each coin is recorded.
it is claimed that in a bushel of peaches less than ten percent are defective. a sample of 400 peaches is examined and
1. for the 16 teams in the national league data is shown for the team batting averages as of august 27 2012.
A travel agent suggests that since the law of averages makes it highly unlikely to have two plane crashes within a few weeks of each other, flying soon after a crash is the safest time. What do you think?
A foreman has ten employees from among whom he must select four to perform a certain undesirable task. Three of the ten employees belong to a minority ethnic group.
Amy Lloyd is interested in leasing a new Honda and has contacted three automobile dealers for pricing information.
A person is considering purchasing the stock of two home health companies that are similar in all respects except the proportion of earnings paid out as dividends.
A salesperson goes door-to-door in a residential area to demonstrate the use of a new household appliance to potential customers. She has found from her years of experience that after demonstration, the probability of purchase (long run average) i..
probability of 0.31 that it is dominant. There is also a probability of 0.22 that a gene is type B and it is dominant. What is the probability that a gene is of type A?
About 40% of the general population donate time and energy to community projects. Suppose 15 people have been randomly selected from a community and each asked whether he or she donates time and energy to community projects.
Suppose that you roll 2 dice and consider the sum of the two. Let A be the event of throwing odd, B be the event of throwing 4 or less and C be the event of throwing a multiple of 3.a) What is the sample space S and the corresponding probability of e..
A study of 200 commercial firms revealed the data below. What is the probability that a particular firm will have $1 million or more in income after taxes?
a four year financial project ha net cash flows of 2000025000 30000 50000 in the next four years. it will cost 75000
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