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1. Explain the relationship between variance and standard deviation. can either of these be negative?expline
2. Find the range, mean, variance and standard deviation of the saple data:
28 25 21 15 7 14 9 27 21 24 14 17 16
Statistics and Probability, Statistics
A fish tank in a pet store has 23 fish in it. 11 are orange and 12 are white. Determine the probability that if we select 4 fish from the tank, at least 2 will be white.
Assumes the following probability" P(customer make a purchase) = 0.300 P(Customer does not make a purchase) = 1-0.300 Compute the P(1purchase) and enter your answer in 3 decimal places.
A researcher reports that the size of an effect in Population A is d = 0.10 and the effect size in Population B is d = 0.34. Which population is associated with greater power to detect an effect? A) Population A B) Popul ...
What is liquidity and why is liquidity important to the success of a business? Give the Reference
You paid cash for $1,300 worth of stock a year ago. Today the portfolio is worth $1,888. a. What rate of return did you earn on the investment? b. Now suppose that you bought the same stock but bought it on margin. The ...
According to a survey of 25,000 ?households, 55 % of the people watching a special event on TV enjoyed the commercials more than the event itself. Complete parts a through e below based on a random sample of nine people ...
Doctoral assistant ships of Ph.D students 50% have paid assistant ships. a random sample of n=200 students is chosen.. based on this sample and using the properties of the binomial distribution, what is the approximate s ...
The Gallup Poll once asked a random sample of 100 adults. " Do you happen to jog?" Suppose 50 of these adults answered 'Yes,I jog" Based on this sample what is the estimated probability that 40% or less of all adults jog ...
In a single? season, an average of 2.4 home runs were hit per game. Assume the number of home runs per game follows the Poisson distribution. ?a) What is the probability that 6 home runs will be hit in a randomly selecte ...
A standard? 52-card deck of cards is shuffled and then a hand of 8 cards is dealt from the deck. How many different outcomes are possible that have exactly 3 ?pairs, and all other cards of different? ranks?
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As