Discuss the below:
1) A store has determined that 25% of all sales are credit sales. A random sample of 75 sales is selected. What is the probability that the sample proportion will be:
a) greater than .34?
b) between .196 and .354?
c) less than .25?
d) less than .10?
2) 10% of items produced by a machine are defective. A random sample of 100 items is selected and checked for defects. What is the probability that the sample will contain:
a) more than .025?
b) less than .13 defective units?