Expected number of spots showing
Suppose that the number of dice thrown is a binomial random variable with n = 10 and p = 0.98. What is the expected number of spots showing on the thrown dice? Expected number of spots =
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You have learned some of the basic terminology of statistics. Please propose a study and write a description of the study no more than two pages. Below is a tentative guideline for the paper.
The average tenure of technicians at ABC Company is 10 years with a standard deviation of 5 years. Calculate the z-score and determine the corresponding percentage for the following question. Please show work and the formulas
Sketch the distribution of bob's results, and show graphically ( with numbers added ) how likely he is to finish at least second? How likely is it that an American winds the Gold Medal?
A particle moves on 3 points situated on a circle. At each step it is equally likely to move one step clockwise or one step counterclockwise
X and Y are independent. Both X and Y have an exponential distribution. If X had mean 3 and Y had mean -2. Find the moment generating function Z=X+Y
Create a 95% confidence interval for the percentage of all American adults who favor the death penalty. Show what the error for the confidence interval is also.
The cholesterol found in eggs is normally distributed with a mean of 200 mg. and a standard deviation of 8 mg. If a sample of 30 eggs is selected at random, find the probability that the mean cholesterol is more than 205. Round answer to 6 decimal
There are 13 hearts in a full deck of 52 cards. In a certain game, you pick a card from a standard deck of 52 cards. If the card is a heart, you win. If the card is not a heart, the person replaces the card to the deck, reshuffles, and draws again
Suppose that X1, X2, X3, X4, and X5 is a random sample from a distribution with density function f(x)=1/theta for 0<x<theta. The null hypothesis theta=1 is to be tested against the alternative hypothesis theta=2 so that the significance leve
How many elements are in the sample space of this experiment? What is the probability that the three numbers drawn are all multiples of 3?
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