Find the probability
An urn contains 7 red marbles and 3 white marbles. Three marbles are drawn from the urn one after the other. Find the probability that the first two are red and the third is white.
1/40
18/41
7/40
7/10
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Calculate the net tractive force F required. answer should be at B: P = 193.4 kW, halfway: P= 136.7 kW, F= 6960N.
Using the ideal gas model with a constant specific heat, Cp, evaluated at the inlet temperature, determine at the exit (a) the temperature, in K (b) the velocity, in m/s
When testing H0:u > u0, using confidence intervals, if u is not contained in the confidence interval then we would A. Draw no conclusion B. Reject H0 C. Alter the level of confidence to allow u to be in the confidence interval D. Fail to reject
Find the % liquid by volume such that the water will pass through the critical point when heated sufficiently. what amount of heating (kJ/kg) of water must be done to carry out this process?
A random variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the distribution, determine two values of which the smallest has 25% of the values below it and the largest has
A total of 200btu of heat is transferred while the pressure is hed constant. (a) determine the final temperature of the water and (b) show the process on a T-v diagram.
The isentropic efficiency is 0.85. Determine the exit temperature, the power required, and explain how the problem would be different if it was an adiabatic compressor?
Now instead of fixing the total sample size n, we fix total survey cost C. Find the allocation of n1, ..., nJ that minimizes the variance of the estimator for the population mean. You may ignore the finite population correction factor.
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