According to the natal mercury 34% od standard bank employees resign becouse of poor pay 28% resign because of a career change while the remainder resign due to family commitments. Determine the following probabilities ( for a group of seven resigned employees) three resigned due to poor pay , four resigned due to family commitments. Atleast one resigned due to career change.

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?