1. A coin is weighted so that probability of obtaining a head in a single toss is 0.3. If the coin is tossed 35 times, what is the probability of obtaining between 9 and 14 heads, inclusive.
a. 0.485
b. 0.749
c. 0.627
d. 0.701
e. 0.287
2. If 14% of men are bald, determine the probability that more than 100 in a random sample of 850 men are bald?
a. 0.9778
b. 0.9664
c. 0.0697
d. 0.0027
e. 0.0378
3. The Colorado Mining and Mineral Company has 1000 employees engaged in its mining operations. It has been estimated that probability of worker meeting with accident during a 1-yr period is 0.08. Determine the probability that more than 70 workers will meet with an accident during the 1-yr period?
a. 0.8665
b. 0.9089
c. 0.3585
d. 0.3827
e. 0.5753