Which variable has a binomial distribution? A. When tiles are drawn, without replacement, from a bag of lettered tiles, X is the number of times it takes to get a vowel.

B. When tiles are drawn, with replacement, from a bag of lettered tiles, X is the number of vowels in 5 draws.

C. When tiles are drawn, with replacement, from a bag of lettered tiles, X is the number of times it takes to get a vowel.

D. When tiles are drawn, without replacement, from a bag of lettered tiles, X is the number of vowels in 5 draws.

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u. s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u. s. dollars for every 100 euros. b. gabriella averages 100 u. s. dollars for every 25 euros. c. gabriella can exchange 75 u. s. dollars for 100 euros. d. gabriella can exchange 100 u. s. dollars for 75 euros.