A security alarm requires a four-digit code. The code can use the digits 0–9 and the digits cannot be repeated. Which expression can be used to determine the probability of the alarm code beginning with a number greater than 7? StartFraction (2 P 1) (9 P 3) Over 10 P 4 EndFraction StartFraction (2 C 1) (9 C 3) Over 10 C 4 EndFraction StartFraction (10 P 1) (9 P 3) Over 10 P 4 EndFraction StartFraction (10 C 1) (9 C 3) Over 10 C 4 EndFraction

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

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

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week