Measures of Position Quiz

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Percentiles, deciles, quartiles in ungrouped data

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ivan garcia

Philippines

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Measures of Position Quiz


Measures of Position QuizVersion en ligne Percentiles, deciles, quartiles in ungrouped data par ivan garcia 1 What is a percentile? a A measure of central tendency b A value that divides a distribution into 100 equal parts. c A value that divides a distribution into 10 equal parts. d The median of a dataset 2 In ungrouped data with n observations, how do you locate Pc (the percentile) using Pc = c n/100? a Use the observation at position ceil(cn/100). b Use the observation at position floor(cn/100). c Use the average of the two nearest observations. d Use the observation at position (cn/100) exactly, without rounding. 3 If n = 20 and you want P10, which data value is the percentile? a The 3rd value b The 2nd value in the ordered data. c The 4th value d The 1st value 4 Using the same 20 data points, what is P30? a The 6th value in the ordered data. b The 5th value c The 7th value d The 8th value 5 What is a decile? a A value used only for grouped data b A value that divides a distribution into 10 equal parts. c A central tendency measure like the mean d A value that divides a distribution into 100 equal parts 6 In ungrouped data, how do you locate Dc (the decile) using Dc = c n/10? a Use the observation at position floor(cn/10). b Use the average of the two nearest observations. c Use the observation at position ceil(cn/10). d Use the observation at position (cn/10) exactly, without rounding. 7 If n = 20, what is D4 (the 4th decile)? a The 8th value in the ordered data. b The 6th value c The 5th value d The 4th value 8 How many percentiles does a dataset have? a No fixed number of percentiles b 9.9 percentiles c 100 percentiles d 99 percentiles. 9 What is Q1 in relation to percentiles? a Q1 corresponds to the 25th percentile (first quartile). b Q1 is the 75th percentile. c Q1 is the 10th percentile. d Q1 is the 50th percentile (median). 10 Which statement best describes quartiles, percentiles, and deciles together? a They are measures of position used to describe where data values lie within a distribution. b They are types of regression models. c They describe variability, not position. d They measure only the center of a distribution. Feedback 1 Percentiles partition data into 100 equal parts. 2 Position is determined by rounding up to the next whole number. 3 P10 uses position ceil(0.10×20) = ceil(2) = 2. 4 P30 position = ceil(0.30×20) = ceil(6) = 6. 5 Deciles partition data into 10 equal parts. 6 Position is ceil(cn/10) for deciles. 7 D4 position = ceil(0.4×20) = ceil(8) = 8. 8 There are 99 percentiles dividing into 100 parts. 9 Q1 is the 25th percentile in descriptive statistics. 10 All are measures of position for ungrouped data.

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Measures of Position Quiz

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À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Measures of Position QuizVersion en ligne

par ivan garcia

What is a percentile?

In ungrouped data with n observations, how do you locate Pc (the percentile) using Pc = c n/100?

If n = 20 and you want P10, which data value is the percentile?

Using the same 20 data points, what is P30?

What is a decile?

In ungrouped data, how do you locate Dc (the decile) using Dc = c n/10?

If n = 20, what is D4 (the 4th decile)?

How many percentiles does a dataset have?

What is Q1 in relation to percentiles?

Which statement best describes quartiles, percentiles, and deciles together?

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