5. In a class of 100 students for a second semester examination, 30 students offer Mathematics, 46 offer Biology while 30 offer Physics. 20 offer Mathematics and Biology, 10 offer Biology and Physics and 12 offer Mathematics and Physics. 4 students do not offer any of the three subjects. f. Draw the Venn diagram to illustrate this information. g. How many students offer all three subjects? h. How many students offer any combination of two subjects only?

What is a scatter plot?

Calculate the median in the given numbers below: \( 7,2,1,4,8,7,2,1 \)

1- Put the ( \( \vee \) ) mark against the statement if it is true and \( (x) \) if it false (10 POIN 1) The number of chlldren in a family is a qualitative data. 2) the mode is always found 3) For any two events \( A \) and \( B \) we must have \( P(A \cup B)=P(A)+P(B) \) 4) The sum of relative frequencies is 1 5) If the events \( A \& B \) are independent then \( \bar{A} \& \bar{B} \) are dependent 6) If the mean >median \( > \) mod the curve is skew from right. 7) The number of different permutations of word \( M I S S I S S I P P I \) is 3400 8) If the mode \( =24 \) and mean \( =60 \) then median \( =50 \). 9) In combination order is not important. 10) If \( X \) is a continuous random variable, then \( P(X=5)=0 \)

1. There are 330 workers in a factory. Out of them, 100 are females, 10 are literate and 100 are married. Moreover, 10 females are literate an married, 20 females are literate and unmarried, 25 married females ar illiterate and 5 "married and literates are males. By drawing the necessar venn-diagram, you are required to find: \( \begin{array}{ll}\text { i. No. of femaleworkers who are illiterate and unmarried. } \\ \text { ii. } \quad \text { No. of literate workers. who are unmarried males. } \\ \text { iii. } \quad \text { No. of married workers who are illiterate males. } \\ \text { iv. } \quad \text { No. of illiterate and unimarried male workers. }\end{array} \)

Cite as características que um bom diagrama de dispersão deve ter para facilitar a interpretação dos dados.