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Give two sets of five numbers that have the same mean but different standard deviations, and give two sets of five numbers that have the same standard deviation but different means.
a the access code for a security system consists of five positions. the first position can be any letter 26 while each
a sales representative must visit six cities. there are direct air connections between each of the cities. use the
Lost luggage. A Department of Transportation report about air travel found that airlines misplace about 5 bags per 1000 passengers.
The weights of canned hams processed at Henline Ham Company follow the normal distribution, with a mean of 9.20 pounds and a standard deviation of .25 pounds. The label weight is given as 9.00 pounds
A ceramics factory can fire eight large batches of pottery a day. Sometimes a few of the pieces break in the process. In order to understand the problem better, the factory records the number of broken pieces in each batch for three days and then ..
a sample of 145 values is randomly selected from a population with mean equal to 43 and standard deviation equal to 19.
The Delaware Lottery is offering customers a chance to win $10,000. Customers pay $5.00 for a ticket (there are 3000 tickets sold only). Second prize is $1,000. If a customer buys only one ticket, find the expected value of this lottery game.
he next 20%, a B; the next 40%, a C; the next 21%, a D; and the bottom 10%, an F. What average must you exceed to receive a grade of C or better?
a medical researcher wishes to determine the percentage of females who take vitamins. he wishes to be 95 confident that
131 are enrolled in both economics and mathematics course. Determine the probability that freshman selected at random from group is enrolled in each of the following?
Find the expected number of violent crimes committed in a 3 month period
Summarize the results and give a brief statement of your conclusion. Your two-way table has a count of zero in one cell
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