The accuracy in the research done by university is 0.81, sensitivity is 0.93, specificity is 0.81 and precision is 0.047.
Given sample size of 58205 and proportion of people donated 576. Cutoff is 0.5.
Probability is the chance of happening an event among all the events possible. It lies between 0 and 1.
TP=total people donated in sample, TN=total number of people,FP=donation,FN=No donation
Accuracy is calculated as under:
=(TP+TN)/(TP+TN+FP+FN)
=(268+23439)/(238+23439+5375+20)
=23707/29102
=0.81
Accuracy=0.81
Sensitivity is calculated as under:
=TP/(TP+FN)
=268/(268+20)
=268/288
=0.93
Precision is calculated as under:
=TP/(TP+FP)
=268/(268+5375)
=268/5643
=0.047
Their values are the probabilities in itself.
Hence accuracy is 0.81, sensitivity is 0.93, specificity is 0.81 and precision is 0.047.
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Answer:
the answer would be B y=x+9/4
Step-by-step explanation:x=4y-9 switch sides 4y-9=x then add 9 to both sides 4y-9+9=x+9
then 4y=x+9 simplify 4y/4=x/4+9/4 then simplify y=x+9/4 that your answer B y=x+9/4
Answer:
3/11 for two red balls
2/11 for two green balls
Step-by-step explanation:
6 red and 5 green balls
- first ball - red= 6/11, green= 5/11
- second red ball- 5/10=1/2, second green ball- 4/10= 2/5
- Two red balls = 6/11*1/2= 3/11
- Two green balls= 5/11*2/5= 2/11