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Probability Tes...

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    Use the following information to answer the next question.

    A particular town has certain number of Government High Schools (having Grades 6 to 10). A survey is conducted in these schools to find the relationship between the heights of students and their respective Grades. For this purpose, 500 students are selected at random from these schools. The given table shows the result of the survey.

    Height (in cm)

    Grade

    120−130

    130−140

    140−150

    150−160

    160−170

    6

    22

    25

    15

    27

    11

    7

    12

    33

    24

    22

    9

    8

    15

    34

    21

    17

    13

    9

    21

    25

    13

    29

    12

    10

    9

    17

    42

    15

    17

    What is the probability that a randomly chosen student is studying in Grade 8 and has a height of more than 180 cm?

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