Worksheet on Mean of Ungrouped Data

Practice the questions given in the worksheet on mean of ungrouped data.

1. Find the mean of the following.

(i) The first five positive integers.

(ii) The first six even natural numbers.


2. Find the mean of the following data.

(i) 7, 9, 3, 5, 8, 6

(ii) 4, 11, 0, 5, 10

3. Find the mean of the following data.

(i) 8, 9, 10, 11, 9, 8, 11, 10, 12, 11, 12, 12, 9, 9, 8, 11

(ii) 50, 55, 52, 54, 53, 55, 53, 50, 54, 54, 52, 53, 55, 55, 50, 55


4. The weights of 20 students of a class were as follows.

Weight (in kg)

40

42

45

46

48

Total

Number of Students

4

2

6

5

3

20

Find the mean weight.


5. The money spent by 30 students during the tiffin hours were as follows.

Money Spent (in $)

0

5

10

20

25

30

Total

Number of Students

5

2

12

7

2

2

30

Find the mean expenditure.


6. Find a if the mean of

(i) 6, 16, a, 12, is 14

(ii) 12, 0, 10, 16, a is 11


7. The mean weight of 4 members of a family is 60 kg. Three of them have the weights 56 kg, 68 kg and 72 kg. Find the weight of the fourth member.

8. The mean daily wage earned by four labors is $ 180. If another laborer James is included in the group the mean daily wage goes up to $ 185. Find the daily wage of James.

9. The mean of three numbers is 8. The mean of those three numbers and x is 7. Find x.


Answers


1. (i) 3

(ii) 7


2. (i) 6\(\frac{1}{3}\)

(ii) 6


3. (i) 10

(ii) 53


4. 44.4

5. 12\(\frac{2}{3}\)

6. (i) 22

(ii) 17


7. 44 kg

8. $ 205

9. 4




9th Grade Math

From Worksheet on Mean of Ungrouped Data to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.

Share this page: What’s this?

Recent Articles

  1. Types of Fractions |Proper Fraction |Improper Fraction |Mixed Fraction

    Jul 12, 24 03:08 PM

    Fractions
    The three types of fractions are : Proper fraction, Improper fraction, Mixed fraction, Proper fraction: Fractions whose numerators are less than the denominators are called proper fractions. (Numerato…

    Read More

  2. Worksheet on Fractions | Questions on Fractions | Representation | Ans

    Jul 12, 24 02:11 PM

    Worksheet on Fractions
    In worksheet on fractions, all grade students can practice the questions on fractions on a whole number and also on representation of a fraction. This exercise sheet on fractions can be practiced

    Read More

  3. Fraction in Lowest Terms |Reducing Fractions|Fraction in Simplest Form

    Jul 12, 24 03:21 AM

    Fraction 8/16
    There are two methods to reduce a given fraction to its simplest form, viz., H.C.F. Method and Prime Factorization Method. If numerator and denominator of a fraction have no common factor other than 1…

    Read More

  4. Conversion of Improper Fractions into Mixed Fractions |Solved Examples

    Jul 12, 24 12:59 AM

    To convert an improper fraction into a mixed number, divide the numerator of the given improper fraction by its denominator. The quotient will represent the whole number and the remainder so obtained…

    Read More

  5. Conversion of Mixed Fractions into Improper Fractions |Solved Examples

    Jul 12, 24 12:30 AM

    Conversion of Mixed Fractions into Improper Fractions
    To convert a mixed number into an improper fraction, we multiply the whole number by the denominator of the proper fraction and then to the product add the numerator of the fraction to get the numerat…

    Read More