please answer the following thank you so much for the help

1. What is the formula for the 2 points 3. What is the formula for the 2 points 6. The number of items sold 2 points 10. Find the variance of the Mean of the Probability standard deviation of a per day at a retail store, with Distribution? * its corresponding probabilities probability distribution of the discrete Probability is shown in the table. Find the random variable X, which can Distribution? * mean of the probability take only the values 1,2, and 3, distribution. * given that P(1) = 10/33, P(2) = 1/3, P(3) = 12/33.* u = EX . P(X) Number of Items Sold X Probability P(X) 19 0.20 A. 4.91 0.20 0.30 H = EX . P(X) 0.20 B. 0.82 0.10 A. 1.25 C. 2.06 O A. O B. 1.56 D. 0.76 O A . 11. Find the standard deviation O C. 434.20 of the probability distribution O D. 20.80 of the random variable X, 62 = EX2 . P(X) - 12 which can take only the values 7. The number of items sold 2 poir 1,2, and 3, given that P(1) = per day at a retail store, with 10/33, P(2) = 1/3, P(3) = 12/33.* 02 = EX2 . P(X) - 12 its corresponding probabilities is shown in the table. Find the O B. A. 4.91 variance of the probability distribution.* B. 0.82 C. 2.06 O B. Number of Items Sold X Probability P(X) 0= VEX2 . P(X) - 12 19 0.20 20 0.20 D. 0.76 0.30 22 0.20 23 0.10 12. When three coins are 2 points tossed, the probability A. 1.25 distribution for the random O c. 0 = VEX2 . P(X) - 12 variable X representing the B. 1.56 number of heads that occur is given below. Compute for mean of the probability C. 434.20 distribution. * u = EX2 . P(X) O c. D. 20.80 Number of Heads X Probability P(x) 8. The number of items sold 2 poin O A. 1.5 2. What is the formula for the 2 points per day at a retail store, with O B. 3 variance of a discrete u = EX2 . P(X) its corresponding probabilities O C. 0.75 Probability Distribution? * is shown in the table. Find the standard deviation of the D. 0.87 probability distribution. * 13. When three coins are 2 po O D. tossed, the probability Number of Items Sold X Probability P(X) H = EX . P(X) distribution for the random 19 0.20 4. A function that associates a 2 points 20 0.20 variable X representing the real number with each 21 0.30 number of heads that occur is 22 0.20 given below. Compute for element in the sample space. 23 0.10 variance of the probability O A. It is a variable whose values A. 1.25 distribution. * are determined by chance. * B. 1.56 Number of Heads X Probability P(X) A. Discrete Random Variable O C. 434.20 62 = EX2 . P(X) - 12 O B. Random Variable A. 1.5 O C. Continuous Random Variable D. 20.80 O B. 3 D. Probability Distribution O C. 0.75 O B. 9. Find the mean of the 2 po probability distribution of the 14. When three coins are 5. The probabilities that a 2 points 2 points random variable X, which can tossed, the probability customer will buy 1,2,3,4, or 5 take only the values 1,2, and 3, distribution for the random 0 = VEX2 . P(X) - 12 items in a grocery store are 3/10, 1/10, 1/10, 2/10, and 3/10 given that P(1) = 10/33, P(2) = variable X representing the number of heads that occur is respectively. What is the 1/3, P(3) = 12/33. * given below. Compute for average number of items that standard deviation of the O c a customer will buy? * A. 4.91 probability distribution. * A. 1.1 Number of Heads X Probability P(X] O B. 2.1 B. 0.82 H = EX2 . P(X) O C. 3.1 O C. 2.06 A. 1.5 D. 4.1 D. 0.76 O B. 3 O O C. 0.75 O D. 0.8715. the probabilities of a 2 points machine manufacturing 0,1,2,3,4, or 5 defective parts in one day are 0.75, 0.17, 0.04, 0.025, 0.01, and 0.005 respectively. Find the variance and standard deviation of the probability distribution. * 62 = 0.68,0 = 0.82 O A 02 = 0.69,0 = 0.83 O B 02 = 0.70,0 = 0.84 O c 02 = 0.71,0 = 0.85 O D