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Mathematics
10th
grade
Mean of Grouped Data- Direct Method | Statistics | Assessment | English | Grade 10
4 questions
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- 1. Multiple Choice
Fill in the blanks . The mean of ungrouped data and the mean calculated after the same data is grouped are ________
always the same
never the same
rarely the same
- 2. Multiple Choice
If the mean of a frequency distribution is 8.1 and ∑f¡x¡ = 142 + 2k, ∑f¡ = 20, then k = ___________
10
5
20
- 3. Multiple Choice
If the mean of the following distribution is 2.6, then the value of y is __ Variable (x) : 1 2 3 4 5 Frequency(f) : 4 5 y 1 2
16
8
4
- 4. Multiple Choice
31.55
90
56.8
- Answer choicesTagsAnswer choicesTags