1) How many may not end in 07 A) 2700 2) Classify the events as are drawn from a
ID: 3050894 • Letter: 1
Question
1) How many may not end in 07 A) 2700 2) Classify the events as are drawn from a deck of playing cards and the irt cardi drawn. dependent or independent The A) 3) The random variable x represents the number od cars per heuseledd in .-of 1000 hmahlde 8) dependent Find the probability of randomly selecting a household that has at least one cat Cars Households 428 256 108 83 2 3 A) 0.125 B) 0.500 C) 0.083 D)0875 4) The probability that a house in an urban area will be burglarized is 5%. If 20 houses are randomly selected, what is the probability that none of the houses will be burglarized? B) 0.050 A) 0.000 C)0.001 D) 0.358 5) In a raffle, 1,000 tickets are sold for $2 each. One ticket will be randomly selected and the win will receive a laptop computer valued at $1200. What is the expected value for a person thas D)-$120 one ticket? A) $1.20 B) $0.8 C)-$0.80 6) In one city, 24% of adults smoke. In groups of size 130 of adults, what is the variance D)2 number that smoke ? C) 11.86 B) 31.2 A) 4.87 The events A and B are mutually exclusive. IiP(A)-03 and P)-0.6, what is P B) 0.9 A) 0.5 never married is 40%. In a random survey of 15 women in this age group B) 8) According to government data, the probability that a woman between the age C) 0.167 that at most 2 were never married? A) 0.027 C) 0.333 ix-sided die is rolled. Find the probability of rolling a numbe B) 0.1Explanation / Answer
Answering question 3 and 4. Rest are either not clear or are incomplete.
3. Total households = 1000
having atleast 1 car = 428+256+108+83 = 875
Probability = 875/1000 = 0.875 - D option
4. Chances of house being burglarised is 5%. Which implies house not burglarised will be 95% or 0.95
Prob that none will b burglarised out of 20 = (0.95)^20
= 0.358 - D option.
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