Page 447 - Math Smart - 7
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1
       8. a)                                                  5. a)^    b)^    .,2
           Mass (kg)       Tally       Frequency
                                                              Check My Understanding (Pg 181)
                6-7        nil         4                                                                  (Nim
                                                              a) I        b)^       c) 39              e)|
                           till  MM MM 1                                              8
                8-9        ITTT tttt ittT 1  16                                                         OC
                                                                                      17
               10-11       ttflll      7                     "lO          9'l       ^>5      i)¥      j)¥
               12-13       III         3
                                                              Check My Understanding (Pg 183)
                Total                  30
                                                              1.  a)ll    b)2l      c)33     d)ll      e)3l
          b)8.8          c) 12.5kg        d) 6.9kg
                                                                f)3l      9)23      h)2|     i)lf
          b)26           f)27             g)3, $300
       9. a a)                                                2. a) 3   b)13   0^  d)U          e)f
                                                                          10
           Duration (min)  Tally        Frequency
                                                              3.  a)li  b)2| c)ll  d)2l         e) 1 3 f)2|
                81 -90     Mil          7
               91 -100     tttt nil     9                     Recall (Pg184)
               101 - 110   tttt II      7                                       2. ^              ± ± 3.
                                                                                                         n
                                                                                                   10 • 10  10
               111 - 120    III         3
                                                              Check My Understanding (Pg 187)
               121 - 130   tttt III     8
               131 - 140    III         3                     1- a)3    b)|     c)f     d)|             Of
               141 - 150                0                     2. a)<    b)>     c)>     d) =    e)>     f)<
               151 -160     II          2                       9)<     h)>     i)<     j)<
                                                                                    19
               161 -170     1           1                     3.
                                                                                    10
                                                                             I I I
          b)40 c)89min d)164min  e) 83 min  f) 14  g) 6
       10. She could change the class interval range to be 5
          instead of 10. Therefore, the class intervals will be 0-5,
                                                                                      greatest.
                                                                                 is
          6-10, 11-15, 16-20, 21-25, 26-30, 31-35, 36-40,     4. Yg is the smallest. |
                                                                                   the
          41-45, 46-50, 51-55, 56-60.
                                                              5.1 Is the smallest. |
                                                                                     greatest.
                                                                                  the
                                                                                is
       Units                                                  6 1 i 19  5
                                                                3 ' 12  24  6
                                                                     n
                                                                         n
       Recall (Pg174)
                                                                11 2 6 4
       a) 5           b)5        c)7           d)4            7.  15 ' 7 • 5 '
                                                                        3
                                                                   all 5 2
                                                              8 8. 3)2-8M       b)l,|,1
       Check My Understanding (Pg 175)
                                                                      n
       1. a)2       b)l                d)l      e)l           9-  a) T 3. 25    b)i 3     13
                                                                                   5' 23
                                                                                          50
                                                                                9_  10
                   g)^                                        in all 12^       11 ' 12
                                                                      6'9' 10
                             4. #               ft 7             us 28  543  280  150
                                                e-TT
                                                                    50 • 800 ' 400 ' 200
                                                                 r\  9222  13790  34820  17500
                   8. 8
                                                                 ' 15000' 20000' 45000' 18000
                                                              11. 3)1,1,6,    1,0
       Try and Apply (Pg 175)
       1.3=1, b=^C=l                                             US 115  482  60  103
                                                                  '' 125' 1250' 250' 500
                                                                 ^s 2500  6000  11500  7650
                                                                 ' 3825' 11475' 22950' 15300
        Check My Understanding (Pg 179)
        1. a) 2   b)21   c) 25    d) 20   e)12    f)35
                                                              13. Adam's father
        2.               c)^      d)3     e)3                 14. Sheila
          g) 1    h)3    i)?      i)i                         Check My Understanding (Pg 190)
        3. a)l    b)l    c)|      d)l     e)f                 1. a)|  b)U
          9)i     b)il    i)T5                                2. 8)1    b) 1
        4. a)§    ")§    0)^      d)3     e)^    "i           3. a) 1 1  b)4
          9)2     h)^            "is                          4. a)2§  b)2l
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