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Basket contain 2 white balls, 5 yellow balls and 3 balls consider selecting one ball at a time from the basket.
a) Assuming the ball selection is without replacement. What is the probability that the the first ball is red and the second ball is white.
b) Assuming the ball selection is with replacement. What is the probability that the first ball is yellow and the second ball is also yellow.
(Please show your work for better understanding )
Women's SAT scores. The average performance of women on the SAT, especially the math part, is lower than that of men.
determine the mean and variance of the random variable.fx 64 21 14x x 123round your answers to three decimal
What horsepower can a solid steel shaft 6 in. in diameter transmit at 160 rpm if the allowable shear stress is 5000 psi?
To test whether two polulations are equal - Since the p value is lesser than 0.05 we reject the null hypotheses
Create a mock SPSS data set. Create a data file in SPSS and enter the data presented in the table located in section 3.5 of chapter 3 in your textbook. Save this SPSS data file
Find a 95% confidence interval for the mean amount of money µ spent at the waiter's tables.
The service times of the arrivals are independent exponential random variables with rate μ, and are independent of the arrival process. Customers depart the system when their service ends. Let N be the number of arrivals before the ?rst departure.
How would you explain the analysis of variance, assuming that your audience has not had a statistics class before?
the owner of brittens egg farm wants to estimate the mean number of eggs laid per chicken. a sample of 20 chickens
obtain the density function of the random variable
One of the three vice-presidents has not been invitged to attend any of the last four games. what is the probability that this could happen?
If the true population mean has shifted to μ = 11.9, determine the value of β corresponding to each of the rejection regions obtained in (i) and hence the power of each test. Comment on the effect that lowering α has on the corresponding values of ..
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