Page 154 - Artificial Intellegence_v2.0_Class_12
P. 154
c. train, test,y train,y test train test split test si e . )
b. train, test,y train,y test train test split ,test si e . )
Ans. a. train, test,y train,y test train test split ,y,test si e . )
. hich of the follo ing statements is true for ean quared rror ) in regression
a. is the sum of squared distances bet een our target variable and predicted values
b. is the sum of the cube of distances bet een our target variable and predicted values.
c. is the sum of distances bet een our target variable and predicted values.
d. is the sum of distances bet een our median and mean values.
Ans. a. is the sum of squared distances bet een our target variable and predicted values
. hich of the follo ing is the reason to use ean quared rror )
a. It cannot be compared to ean Absolute rror.
b. It is sensitive to ards outliers.
c. It is good to use if the target data is not distributed around the mean value.
d. he range of is bet een to .
Ans. b. It is sensitive to ards outliers.
. A loss function is a measure of ho good a prediction model is in terms of being able to predict the e pected
outcome.
i) he loss function ill output a lo er number, if the predictions are good.
ii) he loss function ill output a greater number, if the predictions are incorrect.
hoose the correct option
a. Only i) is correct b. Only ii) is correct
c. ither i) or ii) is correct d. oth i) and ii) are correct
Ans. d. oth i) and ii) are correct
. hich of these are common split percentages bet een rain and est Data
i) rain , est
ii) rain , est
iii) rain , est
iv) rain , est
hoose the correct option
a. i) and ii) b. ii), iii) and iv)
c. ii) and iv) d. i), ii) and iii)
Ans. b. ii), iii) and iv)
. hich of the follo ing is a key success factor to be considered in designing an Al model
a. Initiative b. isual modelling
c. ffective evaluation d. odel validation
Ans. d. odel validation
Touchpad Artificial Intelligence (Ver. 2.0)-XII

