finite Math 200 Question Help 1-5

1. [-/3 Points] DETAILS TANFIN 12 8.3.001. MY NOTES PRACTICE ANOTHER The probability distribution of a random variable X is given. 1 2 3 4 P(X = x) 0.1 0.3 0.2 0.4 Compute the mean, variance, and standard deviation of X. (Round your answers to two decimal places.) mean variance standard deviation Need Help? Read It 2. [-/3 Points] DETAILS TANFIN 12 8.3.003. MY NOTES The probability distribution of a random variable X is given. -2 -1 0 1 2 P(X = X) 1/16 4/16 6/16 4/16 1/16 Compute the mean, variance, and standard deviation of X. mean variance standard deviation Need Help? Read It 3. [-/1 Points] DETAILS TANFIN 12 8.3.009. MY NOTES PRACTICE ANOTHER Find the variance of the probability distribution for the histogram shown. 0.3 0.2 0.1 2 3 Need Help? Read It Watch It 4. [-/2 Points] DETAILS TANFIN12 8.3.012. MY NOTES PRACTICE ANOTHER The happiness score, by generation, conducted in a certain month is given in the following table (percent indicates the top-two box scores on a five-point happiness scale). Silent Generation Average 18+ Millennials Generation X Boomer Generation Score (%) 58.6 54.1 55.7 61.0 66.7 Find the average happiness score for the five generations. % What is the standard deviation for these data? (Round your answer to two decimal places.) % Need Help? Read It Watch It 5. [-/2 Points] DETAILS TANFIN 12 8.3.016. MY NOTES PRACTICE ANOTHER The distribution of the number of chocolate chips (x) in a cookie is shown in the following table. 0 1 2 3 4 5 6 7 8 P(X = x) 0.01 0.02 0.04 0.13 0.15 0.23 0.22 0.16 0.04 Find the mean and the variance of the number of chocolate chips in a cookie. (Round your answers to two decimal places.) mean chocolate chips variance chocolate chips2 Need Help? Read It Watch It