1)Sweet water and Associates write weekend trip insurance at a verynominal charg
ID: 2949955 • Letter: 1
Question
1)Sweet water and Associates write weekend trip insurance at a verynominal charge . Records show that the probability that a motoristwill have an accident during the week end and file a claim 0.0005.suppose they wrote 400 policies for the coming weekend , wat is theprobab that exactly two claims will be filled ?a) 0.8187 b) 0.2500 c) 0.0164 d) 0.0001
2)when data is is collected using a quantitative , ratio variable ,wat is true about a frequency distribution that summarizes thedata?
a)Upper and lower class limits must be calculated
b)A pie chart can be used to summarizre data]
c)the no of classes is equal to the no of variable values
d) the "5 to the k rule" can be applied
3)A survey releaved that 35% of them regularly read time magazine,20%-newsweek and 40% read US News &World report . ten percentread both time and US News &World report.
wat is the probab that a particular excecutive reads either Time orUS News &World report regularly?
a) 0.85 b) 0.06 c)1 d)0.65
4)routine physical examinations are conducted annualy as a part ofa health service program for the employess . it was discorvedthat 8% of the emplyess needed corrective shoes , 15% needmajor dental work and 3 % needed both corrective shoes andmajor dental work. wat si the probability than an emplyee selectedat random will need either corrective shoe or major dental work
a)0.20 b)0.25 c)0.5 d)1 e) none
5)if a frequency distribution has open ended interval at theextremes , which measure of central location is the most difficultto estimate ?
a) mean b) mode C) median d) all the above e) none of the above
Explanation / Answer
2) C the number of classes is equal to the number of variable values
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