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What is the interval used in the frequency chart shown below?

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?