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Find sample size, mean and standard deviation for the binomial distribution.
Law Enforcement: Speed Traps Do you warn oncoming traffic of a police speed trap? About 40% of all drivers will flash their lights to warn oncoming traffic of a speed trap ahead. Suppose seven cars have just driven past a police speed trap.
a) What is the probability at least one of the drivers will warm oncoming traffic?
b) What is the expected number of these seven drivers who will warm 9 oncoming traffic of a police speed trap ahead? What is the standard deviation?
c) How many cars n would need to go by the speed trap to be 99.8% sure that at least one driver will warm oncoming traffic of the speed trap?
The average age of the students in the sample was 23 with a standard deviation of 3.5: a) Formulate the hypotheses for this problem.
First explain what the Gini coefficient is and what hypothetical Gini values of 0 and 1 mean. Sort the data by the Gini coefficient in 2000 and look at the list of countries.
Based on information, compute the following: Percentage (or portion) of children who watch television less than 6.5 hours a week.
Determine the probability of having more than 3 defects in a roll?
Key Refining decided to send a special financing plan to charge account customers having the highest 10 percent of the money charges. What is the dividing point between customers who receive the special plan and those who do not.
At the .05 significance level, can she conclude that there is a difference in the mean amount of weight loss among the three diets?
Use the trend equation to calculate the points for 2003 and 2005. Plot them on the graph and draw the regression line.
A savings account was opened for a baby on 1985 with a $100 deposit. No withdrawals or deposits occurred since the account was opened. The current balance of the account is $246.47. Measured in dollars of the year in which the account was opened, how..
The ANOVA procedure is a statistical approach for determining whether or not:
Write up your results by using scientifically recognized form.
In a study of the consumer's view of the economy, the probability that a consumer would buy a house during the year was 0.0013, and the probability that the consumer would buy a car during the year was 0.198. There was also a 0.0100 probability t..
MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?
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