The probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.
Given that based on a poll, 60% of adults believe in reincarnation, to determine, assuming that 5 adults are randomly selected, what is the probability that exactly 4 of the selected adults believe in reincarnation, and what is the probability that all of the selected adults believe in reincarnation, the following calculations must be performed:
- 0.6 x 0.6 x 0.6 x 0.6 x 0.4 = X
- 0.36 x 0.36 x 0.4 = X
- 0.1296 x 0.4 = X
- 0.05184 = X
- 0.05184 x 100 = 5.184
- 0.6 x 0.6 x 0.6 x 0.6 x 0.6 = X
- 0.36 x 0.36 x 0.6 = X
- 0.1296 x 0.6 = X
- 0.07776 = X
- 0.07776 x 100 = 7.776
Therefore, the probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.
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Answer:
a. 2.56 sec
b. 65.96 feet.
Step-by-step explanation:
a) The equation of motion of a body under gravity gives the equation
......... (1) {Where u is the initial velocity of the body and t is the time to descend h height and g is the acceleration due to gravity.
Now, from the equation (1) we have
{Since g = 32 feet/sec² }
⇒ 
So, applying Sridhar Acharya formula
seconds {Neglecting the negative root as t can not be negative.} (Answer)
b) Again we have the formula that
{Where v is the final velocity before hitting the ground.}
⇒ 
⇒ v = 65.96 feet / sec. (Answer)
