At a baseball game, Toni sold 1220 bags of salted nuts. She sold cashews for $4 per bag and peanuts for $2 per bag. Her sales totaled $3230. To find the number of bags of each type that she sold, Toni solved a system of equations, letting c represent the number of cashews sold and p represent the number of bags of peanuts sold. How many bags of peanuts did Toni sell?

where r the answers

step-by-step explanation:

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