Author Question: Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number ... (Read 111 times)

ss2343 · **on:** Jul 24, 2018

Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number of aces drawn in the set of 4 cards. If this experiment is completed with replacement, explain why x is a binomial random variable.

Question 2

A data sample has a mean of 87, and a median of 117 . The distribution of the data is positively skewed.
Indicate whether the statement is true or false

adf223 · **Reply #1 on:** Jul 24, 2018

Answer to Question 1

x is a binomial random variable because the trials are independent. n = 4, the number of trials; two outcomes, success = ace and failure = not ace; p = P(ace) = 4/52 and q = P(not ace) = 48/52; x = n (aces drawn in 4 trials) and could be any number 0, 1, 2, 3 or 4 . Further, the probability of success (get an ace) remains 4/52 for each trial throughout the experiment, as long as the card drawn on each trial is replaced before the next trial occurs.

Answer to Question 2

F

ss2343 · **Reply #2 on:** Jul 24, 2018

TY

adf223 · **Reply #3 on:** Jul 24, 2018

You're welcome

Author Question: Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number ... (Read 111 times)

ss2343

Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number ...

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adf223

Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number ...

ss2343

Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number ...

adf223

Four cards are selected, one at a time, from a standard deck of 52 cards. Let x represent the number ...