The model shows the addition expression 18 + 12. One expression that is equivalent to this sum is _.
A. 3 + 6 + 4
B. 3 (6 + 4)
C. (3 + 6) 4
D. 3 (6) + 4

This question awards 100 ! i really don’t want to fail i will also mark you !

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

Which statements are true about box plots? check all that apply. they describe sets of data. they include the mean. they show the data split into four parts. they show outliers through really short “whiskers.” each section of a box plot represents 25% of the data.