Clare's Distance
(laps)
Clare's
Time
(minutes)
Clare's
Minutes
per Lap
(tld)
Correct?
2
5
2.5
4
10
2.5
6
15
2.5
8
20
XS S S
2.5
d
I just need help with the last one!

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?