Random find the following probabilities
A grab bag contains 11 $1.00 prizes and 5 $5 prizes, and 3 $20.00 prizes. Three prizes are chosen at random find the following probabilities
The probability that exactly 2 $20.00 prizes are chosen is?
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Serum ferritin is employed in diagnosing iron deficiency. In a study conducted recently researchers discovered that in a sample of 28 elderly men the sample standard deviation of serum ferritin was 52.6 mg/L.
Let z denote a random variable that has a standard normal distribution. Determine each of the probabilities below. (Round all answers to four decimal places.)
In testing the new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that:
A set of data is normally distributed with the mean of 1000 and standard deviation of 100. What would be the standard score for a score of 1100?
Construct the scatterplot for the (x, y) values below, and answer the following questions. You do NOT need to submit your scatterplot with your answer; however, show all other work.
A bag contains 10 white, 12 blue, 13 red, 7 yellow, and 8 green wooded balls. A ball is chosen from the bag, its color noted, then replaced. You then draw the second ball, note its color and then replace the ball. Determine the probability of sele
At the particular college, the SATM (SAT-Math) scores of entering college freshmen were normally distributed with a mean score of 662.6 and standard deviation of 68.2. (z-score) of an entering freshman with a SATM score of 820. Interpret thi
Assume flights from Seattle, WA to Missoula, MT have the same median flight time as flights between Sacramento, CA and Los Angeles, CA. But, the distribution of flight times between Sacramento and LA are symmetric, while the flight times between S
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