practice working with relative frequency tables. weekend curfews determine the values of the letters to…

practice working with relative frequency tables. weekend curfews determine the values of the letters to complete the conditional relative frequency table by column. 16 years old 17 years old total a = b = before 10 p.m. 0.9 b 0.88 after 10 p.m. a 0.15 0.12 total 1.0 1.0 1.0

practice working with relative frequency tables. weekend curfews determine the values of the letters to complete the conditional relative frequency table by column. 16 years old 17 years old total a = b = before 10 p.m. 0.9 b 0.88 after 10 p.m. a 0.15 0.12 total 1.0 1.0 1.0

Answer

Answer:

$a = 0.1$ $b = 0.85$

Explanation:

Step1: Find the value of $a$

For 16 - year - olds, the sum of relative frequencies before 10 p.m. and after 10 p.m. is 1. So $a=1 - 0.9=0.1$.

Step2: Find the value of $b$

For 17 - year - olds, the sum of relative frequencies before 10 p.m. and after 10 p.m. is 1. So $b = 1-0.15 = 0.85$.