A developmental psychologist studies the number of words that seven infants have
ID: 3492618 • Letter: A
Question
A developmental psychologist studies the number of words that seven infants have learned at a particular age. The numbers are 10, 12, 8, 0, 3, 40, and 18 . Figure the (a) mean, (b) median, and (c) standard deviation for the number of words learned by these seven infants. (d) Explain what you have done and what the results mean to a person who has never had a course in statistics.A developmental psychologist studies the number of words that seven infants have learned at a particular age. The numbers are 10, 12, 8, 0, 3, 40, and 18 . Figure the (a) mean, (b) median, and (c) standard deviation for the number of words learned by these seven infants. (d) Explain what you have done and what the results mean to a person who has never had a course in statistics.
A developmental psychologist studies the number of words that seven infants have learned at a particular age. The numbers are 10, 12, 8, 0, 3, 40, and 18 . Figure the (a) mean, (b) median, and (c) standard deviation for the number of words learned by these seven infants. (d) Explain what you have done and what the results mean to a person who has never had a course in statistics.
Explanation / Answer
Number of words learned by infants
Mean
Median
Standard deviation
10
13
10
13.279
12
8
0
3
40
18
We have done descriptive statistics to find the measures of central tendency; we have inferred that the average number of words learned by the infants of this age group is 13. The middle value is 10 i.e. median. However, the variability of this observation is; 13.279
Number of words learned by infants
Mean
Median
Standard deviation
10
13
10
13.279
12
8
0
3
40
18