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Quantitative Aptitude Practice Statistics Study Material

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Statistics

Find the Median of the grouped data if Mean is 10.5 and mode is 14?

a) 8.67 approx.
b) 9.67 approx.
c) 10.67 approx.
d) 11.67 approx.

✔Answer

Correct Answer Is : 11.67 approx.

Solution Is :

If the mean concentration of SO2 in air is 0.099 ppm, the assumed mean for this is 0.14, class interval is 0.04 where ∑fiui is -31. Find the Frequency of the groups data.

a) 14
b) 40
c) 31
d) 30

✔Answer

Correct Answer Is : 30

Solution Is :

The intersection of two ogives on the same axis

a) Mean
b) Median
c) Mode
d) All of these

✔Answer

Correct Answer Is : Median

Solution Is :

What is the mid point of a upper class and lower class?

a) Frequency
b) Class mark
c) Class size
d) None of these

✔Answer

Correct Answer Is : Class mark

Solution Is :

We need Standard deviation, Mode and Mean to measure central tendency.

a) TRUE
b) FALSE
c) Some extent
d) All of these

✔Answer

Correct Answer Is : FALSE

Solution Is :

The median length of 40 leaves of a plant is 146.75 mm, the lower limit of the median class is 144.5. Find the class interval

a) 0
b) 5
c) 9
d) 15

✔Answer

Correct Answer Is : 9

Solution Is :

Can you represent the ungrouped data in frequency polygons?

a) Yes
b) No
c) Some extent
d) None of these

✔Answer

Correct Answer Is : Yes

Solution Is :

Mode=2median-3mean, is it true?

a) TRUE
b) FALSE
c) Some extent
d) All of these

✔Answer

Correct Answer Is : FALSE

Solution Is :

Solve for ∑fiui where the cumulative frequency is 30 and the mean heart beat per minute is 75.9.

a) 1
b) 2
c) 3
d) 4

✔Answer

Correct Answer Is : 4

Solution Is :

Determine the class size of class 15 - 25

a) 10
b) 15
c) 20
d) 25

✔Answer

Correct Answer Is : 10

Solution Is :

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Quantitative Aptitude Practice Statistics Study Material

Statistics

Find the Median of the grouped data if Mean is 10.5 and mode is 14?

Correct Answer Is : 11.67 approx.

Solution Is :

If the mean concentration of SO2 in air is 0.099 ppm, the assumed mean for this is 0.14, class interval is 0.04 where ∑fiui is -31. Find the Frequency of the groups data.

Correct Answer Is : 30

Solution Is :

The intersection of two ogives on the same axis

Correct Answer Is : Median

Solution Is :

What is the mid point of a upper class and lower class?

Correct Answer Is : Class mark

Solution Is :

We need Standard deviation, Mode and Mean to measure central tendency.

Correct Answer Is : FALSE

Solution Is :

The median length of 40 leaves of a plant is 146.75 mm, the lower limit of the median class is 144.5. Find the class interval

Correct Answer Is : 9

Solution Is :

Can you represent the ungrouped data in frequency polygons?

Correct Answer Is : Yes

Solution Is :

Mode=2*median-3*mean, is it true?

Correct Answer Is : FALSE

Solution Is :

Solve for ∑fiui where the cumulative frequency is 30 and the mean heart beat per minute is 75.9.

Correct Answer Is : 4

Solution Is :

Determine the class size of class 15 - 25

Correct Answer Is : 10

Solution Is :

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Mode=2median-3mean, is it true?