Find the range of the following data.
scores: 84, 83, 80, 95, 99, 95, 83, 83, 92, 84
a. 24
b. 19
c. 22
d. 21

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.

What is the sum of these mixed numbers 4 2/3+ 3 1/9

The graph shows the decibel measure for sounds depending on how many times as intense they are as the threshold of sound. noise in a quiet room is 500 times as intense as the threshold of sound. what is the decibel measurement for the quiet room? 20 decibels28 decibels200 decibels280 decibels