University:
High School
Course:
High School Mathematics
Academic year:

2022
Views:

133

Pages:

1
Author:

Layton Liu

12.3 Class Review In Exercises 1 and 2, complete the two-way table. 1. 2. Ran a Half Marathon Yes No Total l 1"2---- 124 Cl) Student 12 0::: Teacher 7 0 Total ))\ tq - 15"¥ n; 263 Owns Dog 0 Yes No Total Yes 24 61 ,g-,s- No 107 3 L-1 �c;- \ '1-\ Total \jt 226 3. In a survey, 112 people feel that the amount of fresh water allowed to empty into the salt water river should be reduced, and 87 people did not feel that the amount of fresh water allowed to empty into the salt water river should be reduced. Of those who feel that the amount of fresh water released should be reduced, 98 people fish the salt water river. Of those that do not feel that the amount of fresh water released should be reduced, 12 people fish the salt water river. a. Organize these results in a two-way table. Then find and interpret the marginal frequencies . . ...1 .. ···- f I ! ,.:( 1t,.} (A.+. l') o Total ·- .. - ... FrP�J.i \/,.//\� p,,,/,l,U,-1 \(t,.-, � f'/u Total .:Ji'� ·;. , '-'lqz.5 .£:. _ O�o·l l ct.'i l'i, ... ' ,,. _L".l.. ' r_";""/0�/ ·75 - 3�/ � ., ...1,. {'i� t l 't4 ':.. ,'JS-2- ·72.. 56 z.ci ---·-1 ":::::-.... l c. Make a two-way table that shows the conditional relative frequencies for each fish category. : : i r t f i Frts� Ye 'S Yts . T' "" ---C ,_ lL vv�t-er � rd /Vo ,l.{'?25 _ .....�-- • :,· ;J- v';,/' l·'))li !.:... --�-( ,-r '�1 1- i' ) .�£109 14..C t? cJ No ,D"O) ·�."?("l(:J ,.,.. -. ,./5"}� -· I ·-· �- _ :_,, ;1 't ,';J -_,/0'1/ -. . 'G "JZ�