Question

a survey was conducted with high school students in each grade to see how many participate in sports. the data are shown below. which statement is true about the marginal frequencies in this table? 191 students play sports and 150 students do not. 153 students do not participate in sports and seventy - five 12th graders were surveyed. 153 students do not participate in sports and 190 do. 191 students play sports and ninety - seven 10th graders were surveyed. 9 10 11 12 total sports 63 52 35 41 no sports 51 45 21 36 total 344

Explanation:

Step1: Calcular estudiantes que practican deportes

Sumamos los valores de la fila "Sports": $63 + 52+35 + 41=191$

Step2: Calcular estudiantes que no practican deportes

Sumamos los valores de la fila "No Sports": $51+45 + 21+36 = 153$

Answer:

191 estudiantes practican deportes y 153 no lo hacen.