17 If a binomial experiment were conducted with 12 trials, with probability of success on each trial 0.6, find the variance if the experiment were conducted many times.

19 Assume poisson. Given that mean is 6.4, find P(5)

11 Find the mean of the given probability distribution. Round appropriately. x P(x) 1 0.15 2 0.29 3 0.43 4 0.13

18 If a binomial experiment were conducted with 12 trials, with probability of success on each trial 0.6, find the minimum usual value if the experiment were conducted many times.

14 Assume binomial: n = 8, p = 0.45, find P(4)

What is shown at the blue arrow?(Green)

What structure is at the arrow?(Bulges)

Calculate the effective field size for a 20 x 18 cm field with a triangular corner block measuring 7 cm x 3 cm. 

Determine the width of the geometric penumbra of a Cobalt-60 beam at 8 cm depth in a patient undergoing treatment at 87 cm SSD. The source diameter is 3 mm and the patient’s surface is 41 cm from the distal end of the collimator. 

Match the depth dose curve with the radiation that produced it. Cobalt-60 Superficial therapy Grenz rays Orthovoltage Contact therapy   1. ______ curve a   2. ______ curve b   3. ______ curve c   4. ______ curve d   5. ______ curve e