Question

These data represent the record high temperatures for each of the 50 states.

112	100	127	120	134	118	105	110	109	112
110	118	117	116	118	122	114	114	105	109
107	112	114	115	118	117	118	122	106	110
116	108	110	121	113	120	119	111	104	111
120	113	120	117	105	110	118	112	114	114

1. Construct a grouped frequency distribution for the data using 7 classes.

2. Construct a histogram and frequency polygon for the data.

3. What these data reveal?

Answer 1

a)

Frequency Distribution Table
Class	Frequency	Relative Frequency
100 - 104	2	0.04
105 - 109	8	0.16
110 - 114	18	0.36
115 - 119	13	0.26
120 - 124	7	0.14
125 - 129	1	0.02
130 - 134	1	0.02
Total	50	100

b) Histogram

c) Frequency polygon

these data show that the distribution is appeared to be slightly right skewed that means that the temperature is quite high in some cities.