دسویں جماعت · ریاضی · 9 سوالات
نام: ____________________ تاریخ: ____________
What is the mean of the data 10, 20, 30, 40?
The median of 2, 4, 6, 8 is:
The most frequent value in a data set is the:
The standard deviation measures:
The variance is:
The mean of 12, 14, 16, 18, 20 is:
The range of 4, 9, 2, 15 is:
A data set has standard deviation 0. All the values are:
Frequency is the:
1. D, 2. C, 3. A, 4. B, 5. D, 6. B, 7. A, 8. B, 9. C
Sum = 100, divided by 4 gives 25.
The mean of the middle two values: (4 + 6) / 2 = 5.
The mode is the value that occurs most often.
It shows how far values lie from the mean.
Variance = (standard deviation)².
Sum = 80 divided by 5 gives 16.
15 - 2 = 13.
There is no spread.
Frequency counts occurrences.