the conditional relative frequency table was generated using data that compares the number of boys and girls…
the conditional relative frequency table was generated using data that compares the number of boys and girls who pack their lunch or buy lunch from the cafeteria. 35 total girls and 50 total boys were surveyed. how many students bought their lunch from the cafeteria? round to the nearest whole number.\n| |cafeteria|pack|total|\n|----|----|----|----|\n|boys|0.44|0.56|1.0|\n|girls|0.4|0.6|1.0|\n|total|0.42|0.58|1.0|
Answer
Explanation:
Step1: Calculate number of boys who bought lunch
Multiply total boys by cafeteria - buying frequency for boys. $50\times0.44 = 22$
Step2: Calculate number of girls who bought lunch
Multiply total girls by cafeteria - buying frequency for girls. $35\times0.4=14$
Step3: Calculate total number of students who bought lunch
Add number of boys and girls who bought lunch. $22 + 14=36$
Answer:
36