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How to work out stem and leaf diagram?
1| 5 7 7 8 8 8 9
2| 0 0 0 0 1 2 3 5 7 7
3| 2 2 4 6 6
4| 1 2
Key=3/2 =32 years
(A) One age has been recorded inaccurately. Put an X through the inaccurate age and give a reason for your answer.?
(B) The test centre manger says, "the range of ages of these who sat the test was 28", Use this information to make the steam and leaf diagram correct. ?
(C) The data from the stem and leaf diagram is to be represented on a pie chart. Calculate the angle on the pie chart which would represent the modal age. ?
1 Answer
- cidyahLv 78 years agoFavorite Answer
(b)
4| 1 3
minimum = 15
maximum = 43
Range = 28
or
1| 4 7 7 8 8 8 9
minimum = 14
maximum = 42
c)
The modal age is 20 (occurs 4 times)
(4/24)(360) = 60 degrees
