Nico paid $15.32 for 4.3 pounds of blueberries. nico estimated the cost per pound to be $5.00. which statement explains nico’s error? (a) nico rounded $15.32 to $15.00 and 4.3 pounds to 6 before dividing. (b)nico rounded $15.32 to $15.00 and 4.3 pounds to 3 before dividing. (c)nico rounded $15.82 to $16.00 and 4.3 pounds to 4 before dividing. (d)nico rounded $15.32 to $10.00 and 4.2 pounds to 2 before dividing.

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