The error rate has decreased after changing the painting process.
<u>Step-by-step explanation:</u>
Abdulla knows that 20 percent of the parts have an error in their painting. After suggesting changes in painting process, he wants to know whether the error rate has changed.
Number of parts in the random sample=400400400
Number of parts that had an error=606060
We have to determine what percentage of 400400400 is 606060

After changing the painting process 0.15% of parts have error.
The previous percentage was 20.Hence the error rate has clearly changed.
Median is defined as the middle term when the scores are arranged in increasing/decreasing order.
Joaquin's scores: 58, 62, 72, 75, 85, 91 Median: 73.5
Trisha's scores: 55, 74, 76, 90, 91, 92 Median: 83
The answer is letter A.
Answer:
Tn=13n-18
Step-by-step explanation:
Tn=-5(n-1)13
Simplify
this is using the a+(n-1)d
Angles are measures of turn. A complete turn is called a perigon angle or full angle which measures 360°. A half (1/2) turn is called a straight angle, because it looks like a straight line with a dot (the vertex) in the middle, its measure is 180°. The rays are the two halves of a line and they point in opposite directions.
Answer:
Malia. (pretty sure)
Step-by-step explanation:
Zak- 8.4
Karen- 7.68
Malia- 9.52
Ali- 7.2