contestada

At Riverview High School, 120 students were asked whether they prefer a lion or a timber wolf as a new school mascot. The two-way frequency table shows the results of the survey. A what is the probability of randomly selecting a student who is the girl that prefers the timber wolf.B what is the probability of randomly selecting a student who is not a boy that prefers the lion?

At Riverview High School 120 students were asked whether they prefer a lion or a timber wolf as a new school mascot The twoway frequency table shows the results class=

Respuesta :

A.

Probability of randomly selecting a student who is the girl that prefers the timber wolf = number of girls that prefer Timber wolf / Total number of student

[tex]P(g,tw)=\frac{no(g,tw)}{total}=\frac{19}{120}=0.1583\approx15.83[/tex]

B.

Probability of randomly selecting a student who is not a boy that prefers the lion = (total number of students - number of boys that prefers the lion) / Total number of student

[tex]P=\frac{total-no(b,lion)}{total}=\frac{120-40}{120}=\frac{80}{120}=0.6667\approx66.67[/tex]

Otras preguntas