Please answer the following:

B. Determine the Variance and Standard Deviation of each random variable. Write your answer in your answer sheets. 1 . X 2 3 4 5 P(x) 2. Z 2 4 6 8 P(z) 0.6 0.1 0.2 0.1 m 1 3 5 7 3. P(m) 40% 25% 15% 20%4. The number of computers sold per day at a local computer store, along with its corresponding probabilities, is shown in the table below. Number of Computer Sold X O Probability P(x) ly in 0.1 eets) 0.2 7 0.3 ance, 9 0.2 t the 0.2 5. The number of inquiries received per day by the office of Admission in SHS X last enrolment is shown below. Number of Inquiries X Probability P(x) 22 0.08 25 0.19 26 0.36 28 0.25 29 0.07 30 0.05 werThe random variable A, representing the number of nuts in a chocolate bar has deviation. " following probability distribution. Compute the variance and standard X P(x) 1 W N 10 10 10 10 10 your The number of items sold per day in a sari-sari store, with its corresponding probabilities, is shown in the table below. Find the variance and standard deviation of the probability distribution. Number of Items Sold X Probability 19 P(x) 0.20 20 0.20 21 0.30 22 0.20 23 0.10Find the mean, variance, and standard deviation of the following probability distribution then interpret the computed values. Write your answer in your answer sheets. 1. Variable z representing the number of male teachers per Elementary school. Z 2 3 4 5 6 P(z) 40% 32% 11% 9% 8% 2. The number of mobile phones sold per day at a retail store varies as shown in the given probability distribution below. Find the expected number of mobile phones that will be sold in one day. X 30 33 38 40 50 P(X) 0.2 0.2 0.35 0.23 0.02 3. Number of monthly absences of Juan Dela Cruz based on his previous records of li absences as presented in the probability distribution below. P Number of Absences (X) Percent P(x) d 3 25% 4 30% 30% 6 15% 15