Kennedyvann2010idn
Answered

IDNLearn.com provides a reliable platform for finding accurate and timely answers. Get the information you need from our experts, who provide reliable and detailed answers to all your questions.

Find the missing number in the data set given below with the MEAN provided

5, 8, , 12, 3

The MEAN is 7.8

Sagot :

VectorFundament120idn

The missing number in the data set is 11.

What is mean value?

Mean value or Average value is a total data divided by the number of data (how many elements are there). In mathematics, it can be expressed as the equation of:

[tex]\displaystyle{\bar x = \dfrac{x_1+x_2+x_3+\dots + x_n}{N}}[/tex]

We define [tex]\displaystyle \bar x[/tex] (x bar) as mean value, N as number of data and the sum is summation of numerical data.

Solution

First, we know that there are 5 numerical data in the data set given ; therefore, N = 5. The question also gives that the mean value is 7.8 and therefore [tex]\displaystyle \bar x[/tex] = 7.8

Substitute the known information in the formula:

[tex]\displaystyle{7.8 = \dfrac{5+8+x+12+3}{5}}[/tex]

Since we are finding the missing data, solve for x:

[tex]\displaystyle{7.8 \cdot 5 = 28+x}\\\\\displaystyle{39=28+x}\\\\\displaystyle{39-28=x}\\\\\displaystyle{11=x}[/tex]

Learn More about Mean & Median:

  • https://brainly.com/question/28760662
LilNas69idn

Answer:

The missing value is 11.

Step-by-step explanation:

Given:

  • Given data set is 5,8,12,3.

To Find:

  • Mean of the given data set.

Formula used:

  • Mean = Sum of all data/Total no. of data

Let the missing value be x

Using the formula, we have

7.8 = (5+8+x+12+3)/5

7.8= (28+x)/5

39 = 28+x

x = 11

So, the missing value is 11.

We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. IDNLearn.com is committed to providing the best answers. Thank you for visiting, and see you next time for more solutions.