Question

ayúdeme por favor :c​

Answer 1

Explicación:

1. 145, 155 (145+155)/2 = 150

2. 155, 165 (155+165)/2 = 160

3. 165, 175 (165 + 175)/2 = 170

4. 175, 185 (175+185)/2 = 180

5. 185, 195 (185+195)/2 = 190

6. 195, 205 (195+205)/2 = 200

7. 205,215 (205+215)/2 = 210

Fi

1. 2

2. 10

3. 20

4. 32

5. 39

6. 45

7. 50

hi

1. 2/50 = 0.04

2. 8/50 = 0.16

3. 10/50 = 0.5

4. 12/50 = 0,24

5. 7/50 = 0.14

6. 6/50 = 0,12

7. 5/50 = 0,1

Hi

1. 0,04

2. 0,2

3. 0,7

4. 0,94

5. 1,08

6. 1,2

7. 1,3

hi%

1. 4%

2. 16%

3. 50%

4. 24%

5. 14%

6. 12%

7. 10%

Xi×fi

1. 150 × 2 = 300

2. 160 × 8 = 1280

3. 170 × 10 = 1700

4. 180 × 12 = 2160

5. 190 × 7 = 1330

6. 200 × 6 = 1200

7. 210 × 5 = 1050