The seismic activity density of a region is the ratio of the number of earthquakes during a given time span to the land area affected. a state had 424 earthquakes over a given time span and a land area of 71,300 square miles. what is the seismic activity density for this state? round to the nearest ten thousandth, if necessary.

0.0046
0.0056
168.1604
179.0049

dont think so

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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