WorksheetCBSE Class 9 Mathematics Statistics Worksheet

CBSE Class 9 Mathematics Statistics Worksheet

Access and download a free statistics class 9 worksheet with solutions pdf download. These printable worksheet on statistics class 9 pdf are tailored to the latest syllabus and exam pattern. Practice these CBSE class 9 worksheet chapter 14 statistics with answers to enhance your understanding of Class 9 Mathematics topics. Additionally, avail of PDF worksheets prepared by teachers according to NCERT, and CBSE books for effective exam preparation.

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    CBSE Class 9 Mathematics Statistics Worksheet

    Solve the following questions based on the concepts of Statistics.

    1. The mean of 5 numbers is 20. If one number is excluded, the mean becomes 16. Find the excluded number.
    2. The median of the data 5,8,10,12,𝑥,14,16 is 11. Find the value of 𝑥x.
    3. The mean of 10 observations is 15. On rechecking, it was found that one observation, namely 25, was incorrectly copied as 52. Find the correct mean.
    4. The mean of 7 observations is 18. If one more observation is added, the new mean becomes 20. Find the added observation.
    5. The mean of 50 observations was found to be 35. Later, it was discovered that an observation 45 was misread as 54. Find the correct mean.
    6. The mean of 15 numbers is 45. If each number is multiplied by 4, find the new mean.
    7. If the mean of 4,8,10,12,18,𝑥 is 11, find the value of 𝑥x.
    8. The median of the data 4,6,8,10,12,𝑥is 9. Find the value of 𝑥x.
    9. The mean of 9 observations is 11.5. If one observation 13 is replaced by 8, find the new mean.
    10. The mean of the following frequency distribution is 45. Find the value of 𝑝p.
    Class Interval Frequency
    10−20 6
    20−30 𝑝
    30−40 8
    40−50 10
    50−60 6

    Answers:

    • Excluded number = 24
    • 𝑥=11
    • Correct mean = 14.5
    • Added observation = 344
    • Correct mean = 34.1
    • New mean = 180
    • 𝑥=6
    • 𝑥=10
    • New mean = 11.33311.333
    • 𝑝=6

    Chapter 14 Statistics worksheet Mathematics CBSE Class 9

    All Class 9 Mathematics worksheets are designed according to the latest curriculum and textbooks for the current academic session. Our teachers have meticulously provided answers to facilitate self-assessment. Additionally, numerous MCQs covering various chapter topics are included to enhance comprehension. Access all study resources for Class 9 Mathematics on Infinity Learn.

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