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sergiy2304 [10]
3 years ago
10

A psychologist developed a new test of adult intelligence. The test was administered to 20 individuals, and the following data w

ere obtained.
104, 88, 121, 114, 107, 91, 95, 117, 109 ,105, 87, 93 ,134, 142, 122 ,95,115, 112 ,108, 108.

Construct a stem-and-leaf display for the data, using a leaf unit of 1.
Mathematics
1 answer:
Kay [80]3 years ago
8 0

Answer:

Stem        Leaf

8         |      7,8

9         |      1,3,5,5

10        |     4,5,7,8,8,9

11         |     2,4,5,7

12        |     1,2

13        |     4

14        |     2

Where 8|7 means 87 for example.

Step-by-step explanation:

For this case we have the following data:

104, 88, 121, 114, 107, 91, 95, 117, 109 ,105, 87, 93 ,134, 142, 122 ,95,115, 112 ,108, 108.

The first step is order this data set on increasing way and we got:

87, 88, 91, 93, 95, 95, 104, 105, 107, 108, 108, 109, 112, 114, 115, 117, 121, 122, 134, 142

And then we can create the stem leaf plot like this:

Stem        Leaf

8         |      7,8

9         |      1,3,5,5

10        |     4,5,7,8,8,9

11         |     2,4,5,7

12        |     1,2

13        |     4

14        |     2

Where 8|7 means 87 for example.

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