for a certain class, the following data table compares how many students have a brother or a sister. what is…

for a certain class, the following data table compares how many students have a brother or a sister. what is the probability that a randomly chosen student from the class does not have a sister?\n| |has a brother|does not have a brother|\n|--|--|--|\n|has a sister|2|3|\n|does not have a sister|4|20|

for a certain class, the following data table compares how many students have a brother or a sister. what is the probability that a randomly chosen student from the class does not have a sister?\n| |has a brother|does not have a brother|\n|--|--|--|\n|has a sister|2|3|\n|does not have a sister|4|20|

Answer

Explanation:

Step1: Calculate total number of students

Add all values in the table: $2 + 3+4 + 20=29$.

Step2: Calculate number of students without a sister

Add the values in the "Does not have a sister" row: $4 + 20 = 24$.

Step3: Calculate the probability

Probability = $\frac{\text{Number of students without a sister}}{\text{Total number of students}}=\frac{24}{29}$.

Answer:

$\frac{24}{29}$