Calculating Mean of Grouped Data Using Assumed Mean Method

Interactive Video
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Mathematics
•
9th - 10th Grade
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary focus of the problem discussed in the video?
Calculating the mean daily expenditure on food
Finding the median of grouped data
Analyzing the variance of expenditures
Determining the mode of household expenditures
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in the data tabulation process?
Finding the total frequency
Calculating the mid-values of class intervals
Listing the number of households
Choosing the assumed mean
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the assumed mean (a) selected?
It is the smallest mid-value
It is the largest mid-value
It is the average of all mid-values
It is the mid-value with the highest frequency
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of calculating the product of frequency and deviation (fidi)?
To find the total frequency
To determine the class intervals
To identify the mode
To assist in calculating the mean
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula used to calculate the mean in the assumed mean method?
x̄ = Σfi / Σfidi
x̄ = a + (Σfidi / Σfi)
x̄ = Σxi / Σfi
x̄ = a - (Σfidi / Σfi)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final calculated mean daily expenditure on food per household?
Rupees 211
Rupees 225
Rupees 200
Rupees 250
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which step involves finding the deviation by subtracting the assumed mean from each mid-value?
First step
Second step
Fourth step
Fifth step
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