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For an examination in which grades of 70 and 88 correspond to standard scores of -0.6 and 1.4 respectively. Find:
(a) the mean
(b) the standard deviation
The accounting association has 15 members, 10 of which are CPAs. The members are to be selected to study ways to increase membership. What is the probability of all three selected are CPAs?
What is the probability that of the last 100 new juvenile delinquents put on probation, 30 or more will commit another crime?
Using a one-sided hypothesis test with a 90% confidence level, which of the following statements do these data support?
Assuming that the first digit cannot be a zero, compute the number of possible outcomes when the digits can be repeated.
Random samples of five hundred units that were selected daily from a manufacturing process produced an overall defective rate of 3.5%. Calculate the lower and upper control limits for a percentage control chart.
Compute the variance and standard deviation of the number that will arrive within two days.
In the last municipal election, a sample of 350 registered voters showed that 85 voted for the incumbants. Find out a 98% confidence interval estimate for the proportion of all voters voting for the incumbants.
A portfolio p of consisting 60% of stock X and 40% of stock Y, has a correlation ρpM = 0.62 with the market. What is the portfolio volatility? Statement on the diversification effect.
Small bag of Skittles candies has following assortment: red (12), blue (5), orange (15), brown (0), green (16), and yellow (7). Create the probability distribution for x.
At 1 excavation site 8641 pot shards have been found that have not presently been cleaned also identified. Define the probability.
What percentage of the averages or medians of the sample will be greater than 140 seconds?
What is the probability that two of absent students were girls.What is the probability that two of absent students were boys.
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