| 1 |
The formula of group data of the median is: |
l + h/f (n/2 -c)
l +∑fx/∑f x n,
l + f<sub>m </sub>- f<sub>1</sub>/2f<sub>m</sub> - f<sub>1</sub> - f<sub>2</sub> x n,
A + ∑fu/∑f x n
|
| 2 |
Coding formula of group data of the arithmetic mean is: |
X̅ = ∑fX/∑f
X̅ = ∑fD/∑f
X̅ = A + ∑fu/∑f x h
X̅ = A + ∑fu/∑f
|
| 3 |
The formula of grouped data of the arithmetic mean is: |
X̅ = ∑X/n
X̅ = A + ∑fX/∑X
X̅ = ∑fX/n
X̅ = l +n/f (n/2 - c)
|
| 4 |
Sum of the deviations of values x from its mean is always ''i.e ∑(x-x̅)’is to equal: |
itself
zero
median
mode
|
| 5 |
A histogram is g group/ set of adjacent: |
squares
circles
rectangle
cube
|
| 6 |
The total of frequency up to an upper class limit or boundary is called: |
frequency
class frequency
cumulative frequency
relative frequency
|
| 7 |
The formula of range is: |
X<sub>max</sub> -X<sub>min</sub>
X<sub>max</sub> + X<sub>min</sub>
groups/wight
none of these
|
| 8 |
The date presented in the form of frequency distribution is called: |
distribution
grouped data
range data
regrouped data
|
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