If the distribution of the population has a nonzero standard deviation and mean 10 then the probability that an individual data value will be greater than 12 is always less than the probability that the mean of 45 randomly selected data values will be greater than 12.

a. true
b. false

There are three grizzly bears in the city zoo. yogi weighs 400.5 pounds, winnie weighs 560.35 pounds, and nyla weighs 628.29 pounds. what is the average weight of the three bears? (hint: what do they weigh all together? ) a. 502.97 pounds c. 604.38 pounds b. 529.71 pounds d. 794.57 pounds