- It Has Been Estimated That Only About 30 Of California Residents Have Adequate Earthquake Supplies Suppose You Randoml 1 (55.23 KiB) Viewed 116 times
It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose you randomly survey 13 California residents. We are interested in the number who have adequate earthquake supplies Part(a) In words define the random variable x. the number of California residents injured in earthquakes each year the number of California residents the number of Califomia residents who have adequate earthquake supplies the number of earthquakes that hit California each year Part () List the values that X may take on OX= 1,2,3, 30 0.X=0, 1,2 O X=0,1,2,13 O x 0,1,2,3,4 Part (c) Give the distribution of X. (Enter exact numbers as intogers, fractions, or decimals. X-20 Part (d) What is the probability that at least six have adequate earthquake supplies (Round your answer to four decimal places.) Part (0) Therefore is more likely that Select of the Is it more likely that none or that all of the residents surveyed will have adequate earthquake supplies? Why? (Round your answers to four decimal places.) The probability that none of the residents have adequate earthquake supplies is while the probability that all of the residents have adequate earthquake supplies is residents will have adequate earthquake supplies Part (0) How many residents do you expect will have adequate earthquake supplies? (Round your answer to the nearest whole number)