The correlation coefficient r between a person's age, x, and the number of websites visited per day, y, is 0.562.

what percent of the variation in the number of websites visited cannot be explained by differences in the people's ages?

a. 31.6%
b. 43.8%
c. 56.2%
d. 68.4%

is it b?

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?

Which of the following tables represents exponential functions?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?