Student |
Pretest |
Post-test |
A |
33 |
42 |
B |
39 |
38 |
C |
39 |
37 |
D |
39 |
42 |
E |
40 |
42 |
F |
41 |
53 |
G |
48 |
46 |
H |
48 |
52 |
I |
48 |
44 |
Sum: |
A higher score on the mindset quiz means that the student has more of a growth mindset. In these examples, the units are points.
6. Compute the mean of the mindset quiz scores for the Post-test.
Show your numerator and denominator.
7. What is the mode of the Post-test mindset quiz scores?
8. What is the median of the Post-test mindset quiz scores?
9. Based on the mean, median, and mode, do you think the Post-test distribution is positively skewed, negatively skewed, or not skewed?
10. Knowing that a higher score on the mindset quiz means that the student has more of a growth mindset, and knowing the mean, median, and mode and what the distribution looks like, what do you think about the group of students who took the Post-test?
SOLUTION 6: Mean ˉx=∑x/n
=(42+38+37+42+42+53+46+52+44)/9
=396/9
=44
SOLUTION 7: Mode :
In the given data, the observation 42 occurs maximum number of
times (3)
∴MODE=42
SOLUTION 8: Median :
Observations in the ascending order are :
37,38,42,42,42,44,46,52,53
Here, n=9 is odd.
M= value of (n+1/2)th observation
= value of (9+1/2)th observation
= value of 5th observation
=42
SOLUTION 9: SINCE MEAN IS GREATER THAN MEDIAN THEREFORE DATA IS POSITIVELY SKEWED.
10) THE STUDENTS WHO TOOK THE TEST SHOWING more of a growth mindset.
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