(5, 10.5) and (25, 12.5) 10
10

0.1
0.1

-0.1
-0.1

-10
-10

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.

Tom drove 206 miles in 3.9 hours. estimate his average speed.

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?