GRADE 11---

Put the solution please

X 30 .25 .15 15 P(x) He ra 4. 0 1 2 3 4 X 0.15 0.35 0.30 0.10 G(x) 0.10 5 The 15 22 33 foll X 11 45 0. 1 0.2 0.3 0.1 H(x) 0.3 ions Compute the MEAN, VARIANCE AND STANDARD DEVIATION (NO SOLUTIONS, NO POINTS/SCORES) 1. Suppose four tiles numbered 1,2,3, and 4 are in a jar. A tile is picked and returned into 15 times. The results are as follows: Tile Number of times picked 1 2 2 3 2. The random variable X, representing the number of nuts in a chcolate bar has the on probability distribution.X 0 1 2 3 4 P(x) 1/10 3/10 3/10 2/10 1/10 3. The random variable Y representing the number of red m&m chcolates per 160-gram pack that has the following probability distribution Y P(y) 4 0.10 5 0.37 6 0.33 7 0.20 4. He random variable Z representing the number of male teachers per elementary school z 3 4 5 6 7 P(z) 40% 32% 11% 9% 8% The expected number of times a baby wakes his/her mother after midgnight, given the following probability distribution X P(x) 0.12 .025 UI A W N N 0.45 0.08 0.08Il. Consider the following discrete probability distributions. FIND THE EXPECTED VALUE. ( NO SOLUTIONS, NO POINTS) 1. 0 1 12 3 X 4 F(x) 1/5 1/5 1/5 1/5 1/5 2. X 1 2 3 4 5 6 7 P(x) 01 .03 13 .25 .39 17 .02 3. X 1 2 3 4 5 6 P(x) 130 25 15 .05 10 15 4. X 0 1 2 3 4 G(x) 0.15 0.35 0.30 0.10 0.10 5. X 11 15 22 33 45 H(x) 0.1 0.2 0.3 0.1 0.3