One thousand and twenty students participated in the school math contest. A random sample (Sample 1) from grades 9 and 10 showed scores of: 72, 89, 67, 81, 75, 79, 81, 80, 62, 64, 83.
A random sample (Sample 2) of grades 11 and 12 showed scores of: 84, 86, 87, 84, 86, 89, 90, 87, 87, 84, 86.

ok

step-by-step explanation:

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

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answer

false

explanation

these practices describe the manner the land use outcome is attained. land management methods implemented by corporations are a mandatory because they are a driver for better land use results economically, socially and environmentally. corporations are required to understand the connection between land use , and land management practices to support sustainable land use policies

yes

step-by-step explanation:

yes