Knowee
Questions
Features
Study Tools

The frequency distribution of a variable x is xi : 2 3 1 5 fi : 1 2 3 1 then the mean is ans.

Question

The frequency distribution of a variable x is

xi 2 3 1 5
fi 1 2 3 1

then the mean is
ans.

🧐 Not the exact question you are looking for?Go ask a question

Solution

The mean (or average) of a frequency distribution can be calculated using the formula:

Mean = Σ(xi * fi) / Σfi

Where: xi = value of the variable fi = frequency of the variable

Let's calculate:

Mean = [(21) + (32) + (13) + (51)] / (1 + 2 + 3 + 1) Mean = [2 + 6 + 3 + 5] / 7 Mean = 16 / 7 Mean = 2.29 (rounded to two decimal places)

So, the mean of the given frequency distribution is approximately 2.29.

This problem has been solved

Similar Questions

The frequency distribution of a variable x is xi : 2 3 1 5 fi : 1 2 3 1 then the mean is

The frequency distribution of a variable x is xi : 2 3 1 5 fi : 1 2 3 1 then the mean is ans.

The numbers 3, 5, 7 and 9 have their respective frequencies x – 2, x + 2, x – 3 and x + 3. If the arithmetic mean is 6.5 then the value of x is

Question 6Typically the x-axis of a bar graph shows1 pointfrequency.the values of the variable of interest.percent.the distribution.

The mean of the following data is 9.5, 5, x, 11, 12, 15, x, x, 5, 7What is the value of x?Question response areaSelect one option

1/1

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.