Question

An article reported the estimated percentage of households with only wireless phone service (no land line) for the 50 U.S. states and the District of Columbia. In the accompanying data table, each state was also classified into one of three geographical regions—West (W), Middle states (M), and East (E).

Wireless %	Region	State	Wireless %	Region	State
14.9	M	AL	10.2	W	MT
12.7	W	AK	23.2	M	NE
19.9	W	AZ	10.8	W	NV
23.6	M	AR	16.9	M	ND
10.0	W	CA	11.6	E	NH
16.7	W	CO	8.0	E	NJ
5.6	E	CN	22.1	W	NM
6.7	E	DE	12.4	E	NY
20.0	E	DC	17.3	E	NC
16.8	E	FL	14.0	E	OH
16.5	E	GA	24.2	M	OK
9.0	W	HI	18.7	W	OR
22.1	W	ID	11.8	E	PA
17.5	M	IL	7.9	E	RI
13.8	M	IN	21.6	E	SC
23.2	M	IA	7.4	M	SD
17.8	M	KA	21.3	M	TN
22.4	M	KY	20.9	M	TX
16.0	M	LA	26.5	W	UT
14.4	E	ME	11.8	E	VA
11.8	E	MD	5.1	E	VT
9.3	E	MA	16.3	W	WA
17.3	M	MI	11.6	E	WV
18.4	M	MN	16.2	M	WI
20.1	M	MS	11.4	W	WY
10.9	M	MO

(a)

Construct a stem-and-leaf display for the wireless percentage using the data from all 50 states and the District of Columbia. (Truncate each leaf at the ones digit. Split the stems, placing leaves 0 to 4 on the first stem and leaves 5 to 9 on the second stem of the same value. Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.)

stem	leaf
0H
1L
1H
2L
2H

Answer 1

Stem	Leaf
0H	5 5 6 7 7 8 9 9
1L	0 0 0 0 1 1 1 1 1 1 2 2 3 4 4 4
1H	6 6 6 6 6 6 6 7 7 7 7 8 8 9
2L	0 0 0 1 1 2 2 2 3 3 3 4
2H	6

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