Sagot :
Answer:
Data: 100, 100, 150, 107, 146, 220, 230, 249, 280, 300, 318, 320, 340, 390, 400, 420, 420, 430, 450, 488). Find the approximate number of classes (K). (NOTE: Round off to Whole Number)(NOTE: ANSWER MUST BE IN NUMERICAL FORM. NO NEED TO WRITE ANY SYMBOLS AND SOLUTIONS.) *