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1. Suppose we toss a penny and a nickel. Let A be the event that the penny is a head and B be the event that the nickel is a tail. The events A and B are
A. disjoint.B. complements.C. independent.
2. The weight of a medium-sized orange selected at random from a large bin of oranges at the local supermarket is a random variable with mean µ = 12 ounces and standard deviation = 1.2 ounces. Suppose we independently pick two oranges at random from the bin. The difference in the weights of the two oranges selected (the weight of the first orange minus the weight of the second orange) is a random variable with standard deviation
A. 0.00 ounces.B. 1.70 ounces.C. 2.88 ounces.
3. A process is called random if
A. individual outcomes are uncertain but happen in a predictable manner through time.B. one has no idea what will happen.C. outcomes happen in a 50-50 split.
Write 1-2 paragraphs for each component of the model (days-to-repair; interval between breakdowns; lost revenue; putting it together).
At a fair run by a local charity organization, it costs 50 cents to try one's luck in drawing an ace from a deck of 52 playing cards. What is the expected profit per customer
Suppose that distribution is normally distributed. If worker at this fast food restaurant is chosen at random,determine the probability that worker earns more than $6.75?
What is sampling with replacement, and why it is used?
Use a 1% level of significance to test the claim that the distribution of first nonzero digits in the account file does not follow Benford's Law.
Use differential calculus to find both sales volume at which revenue is maximised and the maximum revenue available from sales of product X.
What percentage of observations of a normal distribution are represented by the mean plus or minus 1.96 standard deviations?
A dice is thrown thrice. What is the probability that the largest score that turns up is three times the smallest?
Write in interval notation the real numbers greater than or equal to 3 and less than 9. Translate the verbal expression into an algebraic expression: a cubed minuis b cubed.
Calculate the among groups degrees of freedom, determine if the mean ratios for the four neighborhoods are the same?
variables for which you would utilize a repeated measures ANOVA in analysis. Describe the variables and their scale of measurement. Identify whether each factor is fixed or repeating.
Estimate the population in 1600 and graph the population trend from 1600 through to 2000
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