Factoring Polynomials & Solving Word Problem Involving Factoring Polynomials Learning Task 3. Set up an equation and solve each problem. (page 8) 1. The square of a number equals nine times that number. Find the number. Equation 2. Suppose that four times the square of a number equals 20 times that number. What is the number? Equation 3. Twice the square of the sum of a number and 3 is 98. Find the number. Equation Answer

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

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