Question

According to a survey conducted by td ameritrade, one out of four investors have exchange-traded funds in their portfolios (usa today, january 11, 2007). Consider a sample of 20 investors.
a. Compute the probability that exactly 4 investors have exchange-traded funds in their portfolios.
b. Compute the probability that at least 2 of the investors have exchange-traded funds in their portfolios.
c. If you found that exactly

Answer 1

Answer:

According to a survey conducted by td ameritrade, one out of four investors have exchange-traded funds in their portfolios (usa today, january 11, 2007). Consider a sample of 20 investors.

According to a survey conducted by td ameritrade, one out of four investors have exchange-traded funds in their portfolios (usa today, january 11, 2007). Consider a sample of 20 investors. a. Compute the probability that exactly 4 investors have exchange-traded funds in their portfolios.

According to a survey conducted by td ameritrade, one out of four investors have exchange-traded funds in their portfolios (usa today, january 11, 2007). Consider a sample of 20 investors. a. Compute the probability that exactly 4 investors have exchange-traded funds in their portfolios. b. Compute the probability that at least 2 of the investors have exchange-traded funds in their portfolios.

According to a survey conducted by td ameritrade, one out of four investors have exchange-traded funds in their portfolios (usa today, january 11, 2007). Consider a sample of 20 investors. a. Compute the probability that exactly 4 investors have exchange-traded funds in their portfolios. b. Compute the probability that at least 2 of the investors have exchange-traded funds in their portfolios. c. If you found that exactly..............................