Advance Mathematics Quiz – 1
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QUESTION 1
a) Use the statistical function of your non-programmable scientific calculator to find correct to two decimal places the
   i) mean
   ii) variance
  iii) standard deviation, from the frequency distribution table below:Â
    Â
Â
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QUESTION 2
b) Of 100 people who voted in the 2010 elections 5 have voted for all three parties, 10 for CUF and CHADEMA, 15 for CCM and CHADEMA and 7 for CUF and CCM. 10 have voted for CHADEMA only and equal numbers have voted for CCM only and for CUF only. Use a Venn diagram to find how many have voted for:-
    i. CHADEMA or CUF but not CCM
    ii. CCM and CHADEMA but not CUF
   iii. CUF altogether
   iv. Just one party
   v. At most two partiesÂ
Â
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QUESTION 3
b)  (i) Test the validity of the following argument by using the properties of logic: “If Tanzania is a democratic country, then all leaders are obtained through fair elections. Leaders are obtained through unfair election in Tanzania. Therefore Tanzania is not a democratic country”Â
  Â
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QUESTION 4
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QUESTION 5
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