We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

Jonathan's piggy bank contains 20 nickels, 30 quarters, and 50 one-dollar coins. He picks 20 coins from the bank at random; 12 of these coins are one-dollar coins. The theoretical probability of picking a one-dollar coin from the piggy bank before the draw is   ?    %, but the experimental probability, based on the draw, is   ?   %.





thank you

 Nov 10, 2018

\(P[\text{picking a dollar coin}]=\dfrac{50}{100}=\dfrac 1 2\\ \text{This is the theoretical probability of picking a dollar coin}\)


Given what we actually observed


\(\text{The experimental probability is }\\ P[\text{picking a dollar coin}] = \dfrac{12}{20} = \dfrac{3}{5}\)

 Nov 11, 2018

16 Online Users