Author Question: A card is drawn at random from a standard 52-card deck. The conditional probability that the card is ... (Read 123 times)

james9437 · **on:** Jul 24, 2018

A card is drawn at random from a standard 52-card deck. The conditional probability that the card is a 2 given that a 2 or a 3 was drawn is
a. 20.0 (1/5)
b. 25.0 (1/4)
c. 33.3 (1/3)
d. 50.0 (1/2)

Question 2

Which statement is not true about confidence intervals?
a. A confidence interval is an interval of values computed from sample data that is likely to include the true population value.
b. An approximate formula for a 95 confidence interval is sample estimate margin of error.
c. A confidence interval between 20 and 40 means that the population proportion lies between 20 and 40.
d. A 99 confidence interval procedure has a higher probability of producing intervals that will include the population parameter than a 95 confidence interval procedure.