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Aa coin will be tossed 100 times. you get to pick 11 numbers. if the number of heads turns out to equal one of your 11 numbers, you win a dollar. which 11 numbers should you pick, and what is your chance of winning? explain.
The time (in hours) until failure of a transistor is a random variable X which is exponentially distributed with mean = 50. It is observed that after 40 hours the transistor is still working. Find the conditional probability that X > 65.
For the set of data below construct a grouped frequency distribution that as well contains the real limits of each interval, midpoint of each interval, the cumulative frequency,
Test to see if the mean cell phone bill has changed since 2004. Use a .05 level of significance for the test.
Then use ogive to estimate median and first and third quartiles. Also utilize it to reply following question: What percent of 60 mutual fund loads are less than 75.
BMI in children is roughtl normally distributed with the mean of 24.5 and standard deviation of 6.2. BMI of 30 or more is considered obese. Determine proportion of children are obese?
Compute the 99% confidence interval for the percentage of packages that are delivered damaged in the population.
An oil co. is drilling some wells. the results are described as either a dry well or a producer well. Past experience suggests that 10% of exploratory wells are producer wells.
Your company manufactures low calorie frozen dinners. The advertised calorie content is 200 calories. A consumer activist group, FACT: fat and calories tribunal, is claiming that your product is not consistent.
Of the 250 students in a blind taste test, 150 (60%) preferred Milwaukee's Best over Natural Light. Then the 90% confidence interval for the student population proportion preferring Milwaukee's Best is:
Calculate the value of a Rs. 5,000 (par value) bond paying interest at an annual coupon interest rate of 10% with 10 years maturity.
Show draw a cause-and-effect diagram to organize the possible causes of delayed flight departures into the following maj categories.
If 60 percent of those people chewing the gum are successful in stopping smoking, what is the probability that in a group of four smokers using the gum at least one quits smoking?
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