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Question 1: Given a binomial random variable with n=10 and p= .3, use the formula to find the following probabilities:
a) P(X = 3)b) P(X = 5)c) P(X= 8)
Question 2: In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 10% of all voters are Independent. A survey asked 25 people to identify themselves as Democrat, Republican, or Independent:
a) What is the probability that none of the people are Independent?
b) What is the probability that fewer than five people are independent?
c) What is the probability that more than two people are Independent?
1 how many ways are there to select a subcommittee of 7 members from among a committee of 21?2 you have 85 friends with
A private medical clinic wants to estimate the true mean annual income of its patients. If the confidence level is 95%, find the required sample size in order to meet the needs.
Compare among expected monetary approach also expected utility approach. Sketch the brokers utility curve and describe what it says about her risk profile.
How many more observations are necessary for the efficiency expert to be 95% sure that the point estimate x¯ will be in error from the true mean p by at most 15 seconds and find a 75% confidence interval for the population mean number of cars per su..
The ages of circulating pennies are right skewed. Most circulating pennies were minted relatively recently, and extremely old pennies are rare. Assume the ages of circulating pennies have a mean of 12.2 years and a standard deviation of 9.9 years.
The probability that home sales will increase in the next 6 months is 0.25. The probability that the interest rates on loans will go up in the same period is estimated to be 0.74.
Find the confidence interval of the true proportion of students to receive a 3.0 GPA. Find the Z score, standard error, range, and your conclusion in a sentence.
only using standard six sided dice andor a standard deck of playing cards create a casino game that has all of the
3% from excise taxes and 5% other. If a revenue source is selected at random, what is the probability that it comes from individual or corporate income taxes?
Which of the following is the correct interpretation for the regression coefficient of Age? The regression coefficient is not significantly different from zero.
Explain what synthetic division is. Illustrate with example. In synthetic division, what relationship does the divisor and remainder have to the original polynomial function, according to the Remainder Theorem?
the probability that a person will have 01 or2 dental checkups per year is 0.3 0.6 and 0.1 respectively. if seven
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