Practice Exercise1. A grade 11 student of Tabaco National High School surveyed the households in Tabaco City. Therandom variable X represents the number of high school students with gadgets to be used in online classes.The probability distribution of X is shown below.X123400.02P(x)0.180.300.400.10Find the expected value and interpret the result.2. A lottery will be conducted for the benefits of those affected by typhoon Bolly, in San Miguel Island ofTabaco City. One thousand tickets will be sold. One ticket will win Php 5, 000 and the other tickets will winnothing. If you buy one ticket, what will be your expected gain and variance? Interpret the results.

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Practice Exercise 1. A grade 11 student of Tabaco National High School surveyed the households in Tabaco City. The random variable X represents the number of high school students with gadgets to be used in online classes. The probability distribution of X is shown below. 1 2 3 4 X P(x) 0 0.02 0.18 0.30 0.40 0.10 Find the expected value and interpret the result.