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A survey was conducted by a group of stu...

A survey was conducted by a group of students as a part of their environment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Whi

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The correct Answer is:
`8.1`
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A survery was conducted by a group of student as a part of their envionment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Which methode did you use for finding the mean, and why ?

A survey was conducted by a group of students as a part of their environment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Number of plants: 0-2 2-4 4-6 6-8 8-10 10-12 12-14 Number of houses: 1 2 1 5 6 2 3 Which method did you use for finding the mean, and why?

Knowledge Check

  • If the mean number of plants contributed be 8.9, then how many houses contributed 7 to 9 plants?

    A
    6 houses
    B
    7 houses
    C
    8 houses
    D
    9 houses

  • A survey conducted on 20 households in a locality by a group of students resulted in the following frequency table for the number of family members in a household: Find the mode of this data.

    A
    `4`
    B
    `3.8`
    C
    `3.286`
    D
    None

  • As part of the 'Swachh Bharat Abhyan', some houses of a locality in Agra decided to clean up and beautify a Primary School of their locality by planting a number of plants. They involved the school kids and the local community in doing so. Here is the data indicating the number of plants contributed by different houses: If the mean number of plants contributed be 8.9, then how many houses contributed 7 to 9 plants?

    A
    6 houses
    B
    7 houses
    C
    8 houses
    D
    9 houses

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    A survey regarding the heights (in cm) of 50 girls of class X of a school was conducted and the following data was obtained. Find the mean, median and mode.

    A survey of students was made to know which game they like. The data obtained in the survey is presented in the following pie diagram. If the total number of students are 1000, (1) how many students like cricket ? (2) how many studetns like football ? (3) how many students prefer other games ?

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    In order to celebrate Van Mahotsav, the students of a school planned to plant two types of trees in the nearby park. They decided to plant 144 trees of type A and 84 trees of type B. If the two types of plants are to be in the same number of columns, find the maximum number of columns in which they can be planted. What values do these students possess ?

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