Green Bridge Learning Resource Nchekwa Maka Scatter Diagrams

Gbogbo ọrọ náà

A scatter diagram plots pairs of values to reveal whether two quantities are connected. Does more study time go with higher scores? Does temperature affect sales? The pattern of the points answers the question, and a line of best fit lets you make predictions.

In this lesson you will draw and interpret scatter diagrams, describe correlation as positive, negative or zero, and draw and use a line of best fit.

Ayẹwo Ẹkọ

Ekele diri gi maka imecha ihe karịrị na Scatter Diagrams. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

As study time increases, test scores increase. This is: A. positive correlation B. negative correlation C. zero correlation D. no data Answer: A
As one quantity increases the other decreases. This is: A. positive correlation B. negative correlation C. zero correlation D. perfect correlation Answer: B
A line of best fit should: A. join the dots B. pass through the origin C. be balanced through the points D. pass through every point Answer: C
No clear relationship between two variables is called: A. positive correlation B. negative correlation C. zero correlation D. strong correlation Answer: C
A line of best fit is mainly used to: A. prove cause B. estimate values C. list the data D. find the mean Answer: B