the table shows the results of a survey in which 10th - grade students were asked how many siblings…

the table shows the results of a survey in which 10th - grade students were asked how many siblings (brothers and/or sisters) they have. what is the experimental probability that a 10th - grade student chosen at random has at least one, but no more than two, siblings? round to the nearest whole percent. \n\n| number of siblings | number of students |\n| ---- | ---- |\n| 0 | 4 |\n| 1 | 18 |\n| 2 | 10 |\n| 3 | 8 |

the table shows the results of a survey in which 10th - grade students were asked how many siblings (brothers and/or sisters) they have. what is the experimental probability that a 10th - grade student chosen at random has at least one, but no more than two, siblings? round to the nearest whole percent. \n\n| number of siblings | number of students |\n| ---- | ---- |\n| 0 | 4 |\n| 1 | 18 |\n| 2 | 10 |\n| 3 | 8 |

Answer

Explanation:

Step1: Calculate total students

$4 + 18+10 + 8=40$

Step2: Calculate students with 1 - 2 siblings

$18 + 10=28$

Step3: Calculate experimental probability

$\text{Probability}=\frac{28}{40}=0.7$

Step4: Convert to percentage

$0.7\times100 = 70%$

Answer:

$70%$