A bag contains 6 black checkers and 4 red checkers. A checker is selected, kept out of the bag, and then another checker is selected. What is the probability of choosing a black checker and then a red checker without replacement? A. 4/15
B. 3/14
С. 5/35
D. 8/45​

Solutions for 2x+7 less than or equal to 3x-5

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

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?