An acorn falls from the branch of a tree to the ground 25 feet below. The distance, S, that the acom is from the ground as it falls is represented by the equation S(t) = -16t^2 + 25, where t is the number of seconds. For which interval of time is the acorn moving through the air? a. 0<t<=5/4 b. 0<t<5/4 c. t>5/4 d. -5/4<t<5/4

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

probably the last option

step-by-step explanation: