Math Chapter 7 Exam

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Mathematics

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Test Chapter 7 Name I thr,^ l'1 {o wtA tnr-l*v (' 2' u^gv) MULTIPLE CHOICE. Choose the one altemative that best completes the statement or answers the question. Find the mean, median, rnode, and midrange for the given data. Round to the nearest tenth if necessary. 1) 1,0, 8,7, 4, 73, 10, 10, 8, 4, 13, 10,7, 1.4, 4, 10,70,7, 8, 4, 10 A) mean = 8.6, median = 8, mode = 10, oiqtange f rO B) mean = 9.1, median = 8, mode = 1+ ^ia\ryd= C) mean = 8.6, median = 9, mode = 10, midrrfl&e = 10 f D) mean = 8.6, median = 9, mode = 10, 1) ^l(rungL 2) 13, 9, 5,'].,41, 1'I.,, 9, 9, 5, 7, 11, 9 9, mode mean =9.7,median = ='l.4,mid\nge79 mean =9.Z,med,ian = 9, mode 14, midra\g/= 9.5 mean - 9.z,median = 9, mod.e = 9, midrarldf = 9.5 mean =9.Z,median = 9, mode = 9, midr{Zd--S 9, 7, 5, 1't, 13, 9, 9, 7, A) B) C) D) 1']-., 2) - 3\' 23.6, 2'1..2, 19.4, 24.4, 26.9, 23.6, 23.6' 2'l'.2' 24.4' 26.9' 23.6, 19.4, 28.8, 24.4, 23.6, 23.6, 19.4, 21.2, 24.4, 23.6 A) mean =23.4, median --24.4, mode --23.6, mid\pge -?r.1 B) mean = 23.4,median = 23.6,mode = 23.6, midralgy'Z+.t C) mean : 23.9, median : 23.6, mode = 28.8, midrag{ = 9.4 D) mean =23.4, median =23.6, mode =23.6,midry'nW\ 9.4 4) 88, 86, 74, 73, 93, B& 8& 86, 73, 93, 88, 74, 94, 73, 88, 88, 74, 86, 73, 88 A) mean = 83.4, median 86, mode = 8& midr[nge 783.5 87,mod.e - 8& midr\ggd-- 83.5 B) mean = B3.4,median C) mean -- 83.4, median 87, mode = 88, midryrfi\e - 21 D) mean =83.9,median =85,mode =94,mi#ang\: Z1 3) 4) - Find the mean. 5) A distribution company's fleet of trucks get 1t 9,20,9,15,9, and 24 miles per gallon. \tVhat is the mean miles per gallon for the fleet? Round your answer to the nearest whole number. B) 13 miles per gallon A) 14 miles per gallon D) t7 miles per gallon C) 15 miles per ga[on 6) Ten students in Mrs. Smith's math class took a state sponsored aptitude test. Their math scores were reported to Mrs. Smith: 645,569,355,359,502,347,360,59'l',482, and470. Find the mean score. Round your answer to one decimal place if necessary. D) 458.8 c) 4n.5 B) 468.0 A) 476.0 5) 5) € 1r .5 , - of 8. rhe exam ro be 70 wirh a standard deviation rhe mean of my rast statisrics of the following each for z-."ore class ,-":::ed scores were norrM;;;#'d;:;:il""ih"i..-"r"," iJ*r.i* ttt" grades' a. b. 78 c. 70 d. 64 96 e. 56 {2 l^D' tlre newlnaryr as z-scores. Since school disrrict were written i1 local a in teachers the of salaries The best not to give out the actual the district tr,ougt,i it *"ura ue t.no*ledge, ,, the informat,on iutti" did say that the mean salary was g;, . h. v( v saljf il;;;;il;-r";r". rr," _**-uoEi"tticle *". S4OOO *a"tr,li,r,l aut" *utl]ot*rtv 35,000 an
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