given the frequency table, what percentage of the students that like country are also in grades 9–10? round to the nearest whole percent.

band preference for school dance
rap rock country row totals
grades 9–10 40 30 55 125
grades 11–12 60 25 35 120
column totals 100 55 90 245
22%
44%
55%
61%

The percentage of the students that like country and also in grades 9-10 is 61%

Step-by-step explanation:

                          Rap    Rock   Country   Total

Grades 9-10       40        30          55          125

Grades 11-12     60        25          35          120

Total                  100       55          90          245

Percentage= (Number of students in both country and grades/ Total students in country)*100

Total students in country= 90

Number of students in both country and grades 9-10= 55

Percentage= (55/90)*100

                   = 61.11%= 61%(rounded to the nearest whole %)

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

answer: 0.64

step-by-step explanation: