1. 28 29 30 36 37 39 42 53 54 20 55 58 61 67 68 70 74 81 82 93 Find the value of the following ungrouped data a) P15 b)P99 2. Table 4.1 Weight (lb) Frequency (f) Class Boundaries Cumulative Frequency 110 – 119 1 109.5 – 119.5 0 120 – 129 4 119.5 – 129.5 5 130 – 139 17 129.5 – 139.5 22 140 – 149 28 139.5 – 149.5 50 150 – 159 25 149.5 – 159.5 75 160 – 169 18 159.5 – 169.5 93 170 – 179 13 169.5 – 179.5 106 180 – 189 6 179.5 – 189.5 112 190 – 199 5 189.5 – 199.5 117 200 – 209 2 195.5 – 209.5 119 210 – 219 1 209.5 – 219.5 120 ∑f = n = 120 Calculate for a)P37 b)P45
1.
28 29 30 36 37 39 42 53 54 20
55 58 61 67 68 70 74 81 82 93
Find the value of the following ungrouped data
a) P15
b)P99
2.
Table 4.1
Weight (lb) Frequency (f) Class Boundaries Cumulative Frequency
110 – 119 1 109.5 – 119.5 0
120 – 129 4 119.5 – 129.5 5
130 – 139 17 129.5 – 139.5 22
140 – 149 28 139.5 – 149.5 50
150 – 159 25 149.5 – 159.5 75
160 – 169 18 159.5 – 169.5 93
170 – 179 13 169.5 – 179.5 106
180 – 189 6 179.5 – 189.5 112
190 – 199 5 189.5 – 199.5 117
200 – 209 2 195.5 – 209.5 119
210 – 219 1 209.5 – 219.5 120
∑f = n = 120
Calculate for
a)P37
b)P45
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