13-15. A die is tossed twice. Getting 'a number greater than 4' is considered a success. Find the mean and variance of the probability distribution of the number of successes. Cuna de arear

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Q: 8. In a Youth Club, the expected number of people who can play a musical instrument is 4 and the…

A: Excepted No.  = 4 Variance = 3.2

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Q: The average stock price for a company is $30, and the variance is 67.24. Assume that the stock…

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Q: 6. The expected number of pupils who fail the Mathematics test is 2.4 and variance is 1.92. Find the…

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A: Given that, n=120,p=0.45 The mean and standard deviation of the sampling distribution of  p^ is,

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A: We have given that  p= 1%=0.01 Sample size n= 121

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A: The mean is 171 and the standard deviation is 32.

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Q: A die is tossed twice. Getting a number greater than 4' is considered a success. Find the mean and…

A: Given that  A dice tossed twice  n=2 Sample space=S={1,2,3,4,5,6} Required outcomes=(5,6) p=2/6=1/3…

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Q: 3. If 0 and 1 are the only possible values of the random variable x, and if P(0) = P(1) = 0.8, is a…

A: For question 3 X=0or1 only possible values We have to tell P(0)=P(1)=0.8 is probability distribution…

Q: There are 4 red balls, 6 blue balls and 2 white balls in a bag. Suppose on every single turn, you…

A: Given, number of red balls = 4 number of white balls = 2 number of blue ball =6

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Q: A student has 40% chance of getting a scholarship. Consider a group of 10 students. Using Binomial…

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Q: 6. Suppose two dice are tossed. Let X be the sum of the dots on the top faces of the two dice. Find…

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Q: Q: Marks on a CSS exam were normally distributed with a mean of 60 and a variance of 36. a. Find the…

A: Hi! Thank you for the question, as per the honour code, we are allowed to answer three sub-parts at…

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Q: 4. There are 4 red balls, 6 blue balls and 2 white balls in a bag. Suppose on every single turn, you…

A: 4. It was stated that there are 4 red balls, 6 blue balls and 2 white balls in a bag. It was stated…