A number is selected at random from the set 2,3,4,5,6,7,8,9,10. Which event by definition covers the entire sample space of this experiment

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6