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Thinking about shape.
Would you expect distributions of these variables to be uniform, unimodal, or bimodal? Symmetric or skewed? Explain why.
a) The number of speeding tickets each student in the senior class of a college has ever had.
b) Players scores (number of strokes) at the U.S. Open golf tournament in a given year.
c) Weights of female babies born in a particular hospital over the course of a year.
d) The length of the average hair on the heads of students in a large class.
the weights in kilograms of a group of crates being shipped to panama are 95 103 110 104 105 112 and 92. what is the
A store has determined that 25% of all sales are credit sales. A random sample of 75 sales is selected. What is the probability that the sample proportion will be:
using one mean z test to test whether or not to support the claim.the stats teacher believes the actual average amount
Deductible with a $580 premium. (A $Y deductible means the insurance company pays X - Y for X >= Y and X for X
We did a Google search of "videos for law of large numbers" and "videos for the central limit theorem" and found several links.
find the mean variance and standard diviation of the binomial distribution with the given values of n and pn- 121 p
United Airlines established a discount airline named Ted. The managers were interested in determining how flyers using Ted rate the airline service. They plan to question a random sample of flyers from the November 12 flights between Denver and Fo..
a how large a sample should be taken if the population mean is to be estimated with 95 confidence to within 66? the
20 students in a class - if there is a 15% probability that a randomly chosen member has seen a particular movie - what is the expected number of students have seen the movie?
suppose we know grades on final exam in a statistic course are normally distributed with a mean of 72 and standard
Jim McDonald, manager of the fast-food hamburger restaurant McBurger, realizes that providing fast service is a key to the success of the restaurant.
Last year, television station WXYZ's share of the 10 P.M. news audience was approximately equal to, but not greater than, 25%. The station's management believes (and would like to claim for advertising purposes) that the current share is higher th..
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