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A box contains 2 red, and 3 white, and 5 green balls. Two balls are drawn out of the box in succession without replacement.
a) Draw probability tree
b.) What is the probability that white ball will be drawn at 2nd pick.
c) What is the probability that both balls are the same color?
At the 0.05 level of significance, is there evidence of a difference in the mean waiting times in the four locations? State your null and alternative hypotheses. (Note: while the small sample size could justify use of the non- parametric Kruskal-W..
a cup of fourth of july candies contains 6 red 7 white and 8 blue candies. if five are randomly selected then what is
Cholesterol was 186 milligrams with s = 19.0 milligrams. Construct a 95% confidence interval for the true mean cholesterol content of all such eggs.
let x1 and x2 be two independent random variables each representing the number of heads in two flips of a fair coin.
The average stock price for companies making up the S&P 500 is $30, and the standard deviation is $8.20. Assume the stock prices are normally distributed.
Committee were chosen from among the workers without regard to gender: Does this represent a binomial random distribution? Why?
You've been recently hired as a marketing analyst in an advertising agency. You are assigned the task of assessing the impact of direct marketing promotions.
Findout probabilities utilizing standard normal distribution. If the debt is normally distributed with a standard deviation.
Calculate the range, variance, and standard deviation for these sample data.
the u.s. dairy industry wants to estimate the mean yearly milk consumption. a sample of 17 people reveals the mean
The following data represent the service charge for direct-deposit customers if a customer's account falls below the minimum required $1,500 balance for a sample of 26 banks.
A sample of 30 cookies is taken to test the claim that each cookie contains at least 9 chocolate chips. The average number of chocolate chips per cookie in the sample was 7.8 with a standard deviation of 3.
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