Please indicate if the answers are A,B,C or D from number 8-17 please. 00Qv Search13. A quality technician selects 3 iHem From a box of 50. Hlorr mann different suletisoF size 3 are possble?b) 150c) 5014. Thirty tro percent of adults did notrisit their physician's' offices last year. For a randomsomple of 15 aduls, the mean and the stondard deviation for the number adus in this somplewho did not visit the ir physic ions lastwopuoyeare are:b) 3.22 and 3.26pud15. The Klloming table lists the probahiliy distribution of a discrete random variable x:a) 2.19 and 3.11c)4.80 ond l.8118'1pd)1.81 and2.192.to-246.-083.5.•3290--02The mean and the standard deviation of the random raniable xrespectively:a) 2.71 and 17.67b) 4.21 and 2.91c)3.93 nnd 1-49di1.96 end 3-7816. The probability that a person is a college graduate is 35% and that he/she has a high bloadIndependent, the probabihid, thatpres3ure is 12. Assuming thet there trro events areselected at randam is a ailege graduate and has high blood pressure isVes oda) 45.5%b) 4.2%d)9.5%Use the follamng toble inCoad BettayDefective Batterymamufachund_by Conpang Amonufactured by Compang B012017. JP a battery is avlected at rondan, the probebility that this battery is good or is made byCompony Bisoppraimately :c) 42.00%d)96.70%10000%(page4) Page 4 of 88. The number of hours speat per meek on household chores by all adults have a meanof 28 houiss and a stondard deviatian of 7 houry. The probahilily that the meen hoursspnt per meek on hosehold chares by aS ample of 49 adults mill be more than 25.75hours is!a) 10.56%c)39.44%d) G0.56%9.60% of all adults are in faver of abolishing the sales tax and increasing the income tax.The probability that in a rondom sample of 400 adults, 225 or Lesa mill be in favor ofabalishing the sales tax and snceasing the incomelax isa) 43.06%c)6.94%d) 56.94%10. The net meighs of all boxes of Top Taste ookies are noimally distbuted mith a mean of 32.07ounces and a stendard devicdim of 0-|| ounce-The probahility that the net weight of a randemlyselecded bəx of Such Cookies is between 31.81 and 31.94 ounces is :a) 10.99%b) 87-19 %c)49.09 %d) 93.32%11. Eight paant of all allege graduates hired by companies5 years.the probability thatCompanies, exacHy tro mill stey mith the samestay nith the same Campeny for more thensuch college graduates hired recently bymare than Five years is:in a randan sample of 12u) 12.94%c)23. 01%.d) 33-05 %12.Thirly percentof Law studenta who sit for a ber examinetion pass itthe first time using the Binamieldistrbution table » the probability that in a randam semple of 15 larudenta who mill ait for the barexeminadim, at most a mill pass it the First ime is: (Seethe attached Table )3.a) 83.00%17-00%c) 70.32%d) 29:68%17(page 3)

Hey there! Thank you for posting the question. Since there are multiple questions posted, we will answer the first question. If you want any specific question to be answered then please submit that question only or specify the question number in your message. 8) The mean is 28 hours and the standard deviation is 7 hours. The probability that the mean hours spint per week on household chores by a sample of 49 adults will be more than 26.75 hours is: The correct answer is b) 89.44%.