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A die is rolled 180 times. Find the expected number of aces, and the variance for the number of aces. The number of aces will be around___________, give or take_____________ or so. (A die has six faces, all equally likely; the face with one spot is the "ace.")
question 1harryr.m.pittsthedirectoroflegalofcouncilofvancouverwillhavetomakeanumberoftoughdecisionsin the upcoming
If one runner is selected at random, what is the probability that this runner will complete this road race in less than 231.58 minutes?
in womens biathlon sprint the participants ski 7.5 km. after 2.5 km they shoot 5 shots on a target while lying down and
A class has 13 women and 18 men. If student if selected randomly, determine the probability student is a woman?
the height of woman ages 20-29 is normally distributed with a mean of 63.8 inches. assuming the standard diviation
A random sample of stipends of teaching assistants in economics is listed below. Is there sufficient evidence at the alpha=.05 level to conclude that the average stipend different from $15,000? The data is listed below:
Do the thinner cans appear to be strong enough so that they are not crushed when the top lids are pressed onto the sides?
suppose you conduct an experiment in which you flip a two-sided coin six times in succession. how many elements are
Analysis of weekly widget production reveals that the number of widgets X produced in a week is a random variable with mean μX = 200 and standard deviation σX = 20. What are the mean and the standard deviation of C?
what are the appropriate h0 and ha for each of the following research studies? in addition note whether the hypothesis
a student is taking two courses history and math. the probability the student will pass the history course is .51 and
The final score in a statistics course follows a normal distribution with mean 68 and standard deviation 12. What proportion of students in the course would pass if they need at least 50 to pass in the course
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